
Proofs without words are generally pictures or diagrams that help the reader see why a particular mathematical statement may be true, and how one could begin to go about proving it. While in some proofs without words an equation or two may appear to help guide that process, the emphasis is clearly on providing visual clues to stimulate mathematical thought. The proofs in this collection are arranged by topic into five chapters: Geometry and algebra; Trigonometry, calculus and analytic geometry; Inequalities; Integer sums; and Sequences and series. Teachers will find that many of the proofs in this collection are well suited for classroom discussion and for helping students to think visually in mathematics.
- Mathematics and Its History (John Stillwell)
- Journey through Genius: The Great Theorems of Mathematics (William Dunham)
- Proofs Without Words: Exercises in Visual Thinking (Roger B. Nelsen)
- The Mathematical Universe: An Alphabetical Journey Through the Great Proofs, Problems, and Personalities (William Dunham)
- Odds & Ends: Introducing Probability & Decision with a Visual Emphasis (Jonathan Weisberg)
- Introduction to Probability (Joseph K. Blitzstein, Jessica Hwang)
- The Secret Life of Equations: The 50 Greatest Equations and How They Work (Richard Cochrane)
- Euler's Gem: The Polyhedron Formula and the Birth of Topology (David S. Richeson)
- 3Blue1Brown Essence of Linear Algebra: https://www.youtube.com/playlist?list=PLZHQObOWTQDPD3MizzM2xVFitgF8hE_ab
- 3Blue1Brown Differential Equations: https://www.youtube.com/playlist?list=PLZHQObOWTQDNPOjrT6KVlfJuKtYTftqH6
- Dynamics: The Geometry of Behavior (Ralph Abraham, Christopher Shaw)
- Geometry, Relativity and the Fourth Dimension (Rudolf Rucker)
- 3Blue1Brown Essence of Calculus: https://www.youtube.com/playlist?list=PLZHQObOWTQDMsr9K-rj53DwVRMYO3t5Yr
- Calculus for the Practical Man (J.E. Thompson)
- Div, Grad, Curl, and All That: An Informal Text on Vector Calculus (Harry M. Schey)
- Who Is Fourier? a Mathematical Adventure
- Physics, Topology, Logic and Computation: A Rosetta Stone (John C. Baez, Mike Stay)
- An Illustrated Guide to Relativity (Tatsu Takeuchi)
- The Mathematics Of Quantum Mechanics (Martin Laforest)
- A Student's Guide to Maxwell's Equations (Daniel Fleisch) or if you're also interested in a visual guide, I wrote one as well: https://github.com/photonlines/Intuitive-Guide-to-Maxwells-Equations
- Introduction to Elementary Particles (David J. Griffiths)
- An Invitation to Applied Category Theory: Seven Sketches in Compositionality (Brendan Fong, David I Spivak)
- Solving Mathematical Problems: A Personal Perspective (Terence Tao)https://artofproblemsolving.com/store/list/aops-curriculum
I've got a PhD in bioengineering but I'm currently going through Introduction to Counting and Probability and I'm really enjoying it.
Some others (not AOPS series):
Nelsen - Proofs Without Words
Polya - How to Solve it
Strogatz - Nonlinear Dynamics and Chaos