List of Free Science Books

Here’s an alphabetical list of all available free books. Note that many of the links will bring you to an external page, usually with more info about the book and the download links. Also, the links are updated as frequently as possible, however some of them might be broken. Broken links are constantly being fixed. In case you want to report a broken link, or a link that violates copyrights, use the contact form


  • A Beginner’s Guide to Mathematica
  • A Brief Introduction to Particle Physics
  • A First Course in General Relativity
  • A New Astronomy
  • A No-Nonsense Introduction to General Relativity
  • A Popular History of Astronomy During the Nineteenth Century, Fourth Edition
  • A Review of General Chemistry
  • A Simple Guide to Backyard Astronomy
  • A Text Book for High School Students Studying Physics
  • A Tour of Triangle Geometry
  • About Life: Concepts in Modern Biology
  • Acoustic Emission
  • Adaptive Control
  • Advanced Calculus
  • Advanced Learning
  • Advanced Mathematics for Engineers
  • Advanced Microwave Circuits and Systems
  • Advanced Technologies
  • Advances in Computer Science and IT
  • Advances in Evolutionary Algorithms
  • Advances in Geoscience and Remote Sensing
  • Advances in Haptics
  • Advances in Human Computer Interaction
  • Age of Einstein
  • Aging by Design
  • AMPL:  A Modeling Language for Mathematical Programming
  • An Introduction to Elementary Particles
  • An Introduction to Higher Mathematics
  • An Introduction to Many Worlds in Quantum Computation
  • An Introduction to Mathematical Reasoning
  • An Introduction to Mathematics
  • An Introduction to Proofs and the Mathematical Vernacular
  • An Introduction to Relativistic Quantum Mechanics
  • Analysis 1 (Tao T)
  • Analysis 2 (Tao T)
  • Analytic Functions
  • Astronomical Discovery
  • Astronomy for Amateurs
  • Astronomy Today
  • Astronomy with an Opera-Glass
  • Automation and Robotics


  • Basic Algebra, Topology and Differential Calculus
  • Basic Concepts of Mathematics
  • Basic Concepts of Thermodynamics
  • Basic Concepts of Thermodynamics Chapter 1
  • Basic Ideas in Chemistry
  • Basic Math: Quick Reference eBook
  • Basic Mathematics for Astronomy
  • Basic Physics
  • Basic Positional Astronomy
  • Basic Principles of Classical and Statistical Thermodynamics
  • Basic Principles of Physics
  • Basics of Physics
  • Beginner’s Botany
  • Biochemistry
  • Biochemistry (practice book)
  • Biology
  • Board Notes for Particle Physics
  • Book of Proof


  • Calculus
  • Calculus Based Physics
  • Celestial Navigation, Elementary Astronomy, Piloting
  • Circuit QED — Lecture Notes
  • Classical Dynamics
  • Classical Geometry
  • Classical Mechanics
  • Climate Models
  • Collaborative Statistics
  • College Algebra
  • Complex Analysis
  • Computational Geometry
  • Computational Introduction to Number Theory and Algebra
  • Computational Physics with Python
  • Conceptual Physics
  • Consistent Quantum Theory
  • Cook-Book Of Mathematics
  • College Physics
  • Crude Oil Emulsions- Composition Stability and Characterization
  • Curiosities of the Sky


  • Decoherence: Basic Concepts and Their Interpretation
  • Do We Really Understand Quantum Mechanics?
  • Differential Equations
  • Diophantine Analysis
  • Discover Physics
  • Dr. Donald Luttermoser’s Physics Notes
  • Dynamics and Relativity


  • Earthquake Research and Analysis
  • Earthquake-Resistant Structures – Design, Assessment and Rehabilitation
  • Einstein for Everyone
  • Electromagnetic Field Theory
  • Elementary Mathematical Astronomy
  • Elementary Linear Algebra
  • Elementary Particle Physics in a Nutshell
  • Elementary Particles in Physics
  • Elements of Astrophysics
  • Embedded Systems – Theory and Design Methodology
  • Encyclopaedia of Mathematics
  • Encyclopedia of Astrophysics
  • Engineering Mathematics 1
  • Engineering Mathematics with Tables
  • Essential Engineering Mathematics
  • Essential Physics
  • Exoplanet Observing for Amateurs
  • Experimental Particle Physics


  • Fields
  • Foundations of Nonstandard Analysis
  • Frequently Asked Questions about Calendars
  • Fundamental Concepts of Mathematics
  • Fundamentals of Analysis (Chen W.W.L)
  • Further Mathematical Methods
  • Fusion Physics


  • General Chemistry
  • General Relativity
  • General Relativity
  • Geometric Asymptotics
  • Geometry and Group Theory
  • Geometry and Topology
  • Geometry Formulas and Facts
  • Geometry Study Guide
  • Geometry, Topology and Physics
  • Geometry, Topology, Localization and Galois Symmetry
  • Great Astronomers


  • Handbook of Formulae and Physical Constants
  • High School Mathematics Extensions
  • Higher Mathematics for Engineers and Physicists
  • History of Astronomy
  • Homeomorphisms in Analysis
  • How to Use Experimental Data to Compute the Probability of Your Theory


  • Intelligent Systems
  • Intrinsic Geometry of Surfaces
  • Introduction to Astronomy and Cosmology
  • Introduction to Cancer Biology
  • Introduction to Chemistry
  • Introduction to Cosmology
  • Introduction to Elementary Particles
  • Introduction to General Relativity
  • Introduction To Finite Mathematics
  • Introduction to Particle Physics Notes
  • Introduction to PID Controllers
  • Introduction to Quantum Mechanics with Applications to Chemistry
  • Introduction to Quantum Noise, Measurement and Amplification
  • Introduction to Social Network Methods
  • Introduction to String Field Theory
  • Introduction to the Time Evolution of Open Quantum Systems
  • Introduction to Quantum Mechanics
  • Introductory Computational Physics
  • Introductory Physics 1
  • Introductory Physics 2


  • Kinetic Theory


  • Laboratory Manual for Introductory Physics
  • Laws of Physics
  • Learn Physics Today
  • Lecture Notes in Discrete Mathematics
  • Lecture Notes in Quantum Mechanics
  • Lecture Notes in Nuclear and Particle Physics
  • Lecture Notes in Particle Physics
  • Lecture Notes on General Relativity
  • Lectures on Astronomy, Astrophysics, and Cosmology
  • Lectures on Particle Physics
  • Lectures on Riemann Zeta-Function
  • Light and Matter


  • Mag 7 Star Atlas Project
  • Many Particle Physics
  • Math Alive
  • Mathematical Analysis I(Zakon E)
  • Mathematical Biology
  • Mathematical Methods
  • Mathematical Methods 1
  • Mathematical Methods for Physical Sciences
  • Mathematical Methods of Engineering Analysis
  • Mathematics, Basic Math and Algebra
  • Mathematics for Computer Science
  • Mathematics for Computer Science
  • Mathematics for Computer Scientists
  • Mathematics For Engineering Students
  • Mathematics Formulary
  • Motion Mountain
  • Music: A Mathematical Offering
  • Mysteries of the Sun


  • Natural Disasters
  • New Frontiers in Graph Theory
  • Noise Control, Reduction and Cancellation Solutions in Engineering
  • Nondestructive Testing Methods and New Applications
  • Nonlinear Optics
  • Notes on Coarse Geometry
  • Notes on Elementary Particle Physics
  • Notes on Quantum Mechanics


  • Observing the Sky from 30S
  • On Particle Physics
  • Operating Systems: Three Easy Pieces


  • Particle Physics Course Univ. Cape Town
  • Particle Physics Lecture Notes
  • People’s Physics Book
  • Perspectives in Quantum Physics: Epistemological, Ontological and Pedagogical
  • Photons, Schmotons
  • Physics Lectures
  • Physics Tutorials
  • Physics Study Guides
  • Pioneers of Science
  • Practical Astronomy
  • Practical Astronomy for Engineers
  • Preparing for College Physics
  • Primer Of Celestial Navigation
  • Principal Component Analysis – Multidisciplinary Applications
  • Publications of the Astronomical Society of the Pacific Volume 1


  • Quantum Dissipative Systems
  • Quantum Field Theory
  • Quantum Fluctuations
  • Quantum Information Theory
  • Quantum Magnetism
  • Quantum Mechanics
  • Quantum Mechanics
  • Quantum Mechanics: A Graduate Course
  • Quantum Mechanics: An Intermediate Level Course
  • Quantum Notes
  • Quantum Physics Notes
  • Quantum Theory of Many-Particle Systems
  • Quantum Transients


  • Recreations in Astronomy
  • Relativistic Quantum Dynamics
  • Relativity: The Special and General Theory
  • Review of Basic Mathematics
  • Riemann Surfaces, Dynamics and Geometry Course Notes


  • Short History of Astronomy
  • Sintering of Ceramics – New Emerging Techniques
  • Solitons
  • Some Basic Principles from Astronomy
  • Special Relativity
  • Spherical Astronomy
  • Star-Gazer’s Hand-Book
  • Statistical Physics
  • Street-Fighting Mathematics
  • String Theory
  • Structures of Life
  • Supernova Remnants: The X-ray Perspective
  • Superspace: One Thousand and One Lessons in Supersymmetry
  • System of Systems


  • The Astrobiology Primer: An Outline of General Knowledge
  • The Astronomy and the Bible
  • The Astronomy of the Bible: An Elementary Commentary on the Astronomical References of Holy Scripture
  • The Basic Paradoxes of Statistical Classical Physics and Quantum Mechanics
  • The Beginning and the End
  • The Beginning and the End of the Universe
  • The Complete Idiot’s Guide to the Sun
  • The Convenient Setting of Global Analysis
  • The Eightfold Way: The Beauty of Klein’s Quartic Curve
  • The General Theory of Relativity
  • The Geology of Terrestrial Planets
  • The Geometry of the Sphere
  • The Handbook of Essential Mathematics
  • The Moon: A Full Description and Map of its Principal Physical Features
  • The Open Agenda
  • The Origin of Mass in Particle Physics
  • The Particle Detector Brief Book
  • The Physics Hypertextbook
  • The Physics of Quantum Mechanics
  • The Planet Mars
  • The Small n Problem in High Energy Physics
  • The Story of Eclipses
  • The Story of the Heavens
  • The Structure of Life
  • The Wonder Book of Knowledge
  • The World According to the Hubble Space Telescope
  • The Zij as-Sanjari of Gregory Chioniades (June 27, 2009)
  • Three Dimensional Geometry


  • Understanding Physics
  • Unfolding the Labyrinth
  • Utility of Quaternions in Physics
  • Uses of Astronomy

Before I start this, I wanna say a huge huge thank you for 3,900 followers!!! It means s o so so much to me and I wish I could hug each and every one of you! Last but certainly not least is the second half of the Busan line, the other half to both Jikook and Taekook, our precious maknae with the cutest nose scrunch like I love when kook smiles really really big and his eyes are all eye smile and then it’s just a tiny nose scrunch that’s adorable, Jeon Jungkook aka kookie

  • This AU is gonna feature photographer!kook (here)
  • Visuals are up first bc I lo ve visuals
  • I gotta do black hair!kook bc that is one of my favorite looks on him (my most favorite look is blonde!kook) 
  • Okay but fire!kook was such a good look it’s my favorite dark hair on him like danger was niCe but I love me some fluffy haired!kook and fire!kook was fl uf fy and messy and it was so cute and if it wasn’t for blonde!kook being so damn nice, black hair!kook would be the top of the list for sure 
  • I mean the color kook has now is super cute too I love it so much I’m so excited to see if he performs with it or if he dyes it again, either way 10/10 I love this concept
  • Onto suits bc this is important to me I love suit!BTS so much, Jungkook seems to stick to mainly the classic suit look, black pants and jacket, white shirt with the occasional switch up but I mean I’m so not complaining bc Jungkook in a suit is so handsome (he’s always handsome but there’s just something about BTS in suits that are so nice)
  • There are quite a few pictures of him in a suit and it makes me !! bc he’s so pretty and his face is just so nice and then he’s got that cute smile and the laugh and everything is just really nice with kook
  • So his AU ties into Jimin (here) and Namjoon’s (here) AUs, I’m gonna sum it up, Namjoon is a fashion designer and Jimin runs a modeling company so the two are often collaborating and Jimin’s models model for joon’s clothes
  • Jungkook runs a magazine company
  • It starts with him just fooling around in high school with the boys and you and taking pictures of posting them online and then he gets more serious about it once he goes off to college and he becomes a photography major
  • One of his photography professors has some connections to a magazine company so they send in some photos and then the magazine wants to use his pictures in a couple of their spreads so they arrange it all and he’s v v proud and happy and buys ten copies when that month’s issue comes out 
  • They ask him if he has any other photos, if he’s got a portfolio all of that good stuff and they pretty much start interviewing him and eventually, they hire him as an actual photographer for them
  • It does take a while but he works his way up from just being a photographer to having some say in the editing process and he starts learning more about all of the other jobs that go into a magazine bc all he’s ever known is that he’s gotta send the photos in by a certain deadline or another photographer will get the job that’s his main concern
  • But he finds the whole process to be really interesting and he starts studying it and he uses the money he’s saved up from all of the photography jobs to start his own magazine company
  • The success is pretty instant bc he’s got both Namjoon and Jimin supporting it (which he’s s o grateful for) and agreeing to shoots for his magazine and one of the very first issues is actually of Jimin
  • Head canon that Jimin’s first modeling pictures were all photographed by Jungkook so Jungkook makes sure that he’s the one photographing Jimin all these years later  
  • In Jimin’s post, I mentioned that all of his models model for Namjoon at some point in their careers and most if not all of Namjoon’s fashion models are from Jimin’s company
  • Well I’m gonna add onto that and say that the magazine joon is getting to publish his fashion shoots is Jungkook’s magazine and that it’s always kookie’s photographers working with chim’s models
  • So all three of their careers are lined up together and it’s just like the real BTS, they all support each other and just want the others to be successful and happy
  • Jungkook’s office would be so chic and smooth and a lil bit messy but still cutE
  • It’s all black and white like the desk is black but then the frames for the photos (of you and the pup) are white and there’s a big fluffy white rug on the floor that he may or may not have taken a nap on at three in the morning when he was tired and you were already asleep on the couch in his office so he had to improvise (it’s actually not a bad bed at all)
  • Waking him up is actually pretty hard bc he’s just so comfy and warm and he kinda just rolls himself under the desk and drags the rug along with him and you can’t decide whether you should laugh or join him bc honestly the shit looks comfy as hell
  • Jungkook always takes you with him to Namjoon’s fashion shows and Jimin always welcomes you as “the Jeons” bc kook gets so proud and stands a lil taller every single time 
  • CEO!Jungkook is a very hard worker who’s just s o happy that he’s able to do his passion and be with his best friends

Daga Ziober reading for XOXO Magazine, Spring/Summer 2015. Photograph by Umit Savaci.

The collaboration between Polish model Ziober and photographer Savaci produced a quiet black and white editorial. Nothing too dramatic, just a down-to-earth attitude both in matters of style and the photographic setting. Ziober’s bone structure is perhaps the highlight of this cinematic story.


Set 2- Some MORE shots from a Harry Potter themed collaborative photoshoot- “Slytherin Head Girl’. The shoot featured one of my wands! Our beautiful model is Laura Gilbert, aka cosplayer Infamous Harley Quinn.

~*Instagram Links for Collaborators*~

Model: @infamous_harley_quinn @lauragbert
Photography: @vesper_cave
HMUA: @missdododivine
Makeup supplied by : @kryolanaustralia
Dress: @sarsparilly
Hair piece: @gigisretrocloset
Shoes: @shoeenvy
Wand: @katescreationsaustralia


Sad by Dudy GR’s
Via Flickr:
Model. Delinda Nita This shot on Collaboration photohobby

The painful process of a Collaboration model between purei-c and pocky-poison

The model starts off with purei-c bitch picking out a design in Project Diva DX/F/F2nd/FUCK YOU/Arcade 

Then purei-c starts modeling the outfit and shit (For this model we even edited the base and rerigged it again, I’M IN PAIN)

This process can take up to almost 1 and a half months (BITCH THAT SHIT IS FUCKING HARD LIKE WTF) (Yes the wings are modeled by scratch, it took me like a whole day)

After some months purei-c finds the data in her trash again and exports it.

She adds all the shits a basic model needs to survive world war 3

The left edit is the raw output while the model on the right is the Pocky-Poison edited model which is fucking omg amazing

After we have done that, purei-c does a quality check and fixes everything that is left shitty

Then Pocky-Poison also checks it one time and the model gets shared


when the model gets shared it’s like half done


Btw the model you see up there is not final, there are still things missing like the wings.

We will be finished 2019

I swear

Collaborative model. 17 meter length! Design Studio at ETSAM (Universidad Politécnica de Madrid) 📷: @arenasbasabepalacios