Calculus by Michael SpivakHow to Solve It  by George PólyaHow to Prove It by Daniel J. VellemanUnderstanding Analysis by Stephen AbbottIntroduction to Linear Algebra by Gilbert Strang
Mathematics Year 1 (MCSL)
18th out of 44 books — 14 voters
The Princeton Companion to Mathematics by Timothy GowersMathematics by A.D. AleksandrovProofs from THE BOOK by Martin AignerWhat Is Mathematics? An Elementary Approach to Ideas and Methods by Richard CourantEuclid's Elements by Euclid
General Mathematics (MMath)
41st out of 51 books — 8 voters

The IMO Compendium by Dušan DjukićMathematical Mindsets by Jo BoalerThe Art of Problem Solving, Volume 1 by Sandor LehoczkyProblem-Solving Through Problems by Loren C. Larsonthe Art of Problem Solving, Volume 2 by Richard Rusczyk
Mathematics Education (MMath)
9th out of 33 books — 7 voters
Linear Algebra Done Right by Sheldon AxlerCalculus by Michael SpivakInfinite Powers by Steven H. StrogatzConcrete Mathematics by Ronald GrahamFlatland by Edwin A. Abbott
Teach Yourself University Mathematics
18th out of 76 books — 6 voters

Calculus by Michael SpivakAlgebra by Paolo AluffiVisual Complex Analysis by Tristan NeedhamA Book of Abstract Algebra by Charles C. PinterPrinciples of Mathematical Analysis by Walter Rudin
Undergraduate Mathematics
268th out of 571 books — 37 voters

Concrete Mathematics by Ronald GrahamThe Princeton Companion to Mathematics by Timothy GowersMathematical Methods in the Physical Sciences by Mary L. BoasLinear Algebra and Its Applications by Gilbert StrangDiv, Grad, Curl, and All That by Harry M. Schey
University Mathematics
19th out of 105 books — 6 voters
Timefulness by Marcia BjornerudHow to Think Like a Roman Emperor by Donald J. RobertsonHOW TO THINK LIKE A NEANDERTAL by Thomas WynnHow to Think Like an Anthropologist by Matthew EngelkeMastermind by Maria Konnikova
"How to Think Like . . ."
20th out of 87 books — 8 voters

How to Solve It by George PólyaHow to Study for a Mathematics Degree by Lara AlcockHow to Think Like a Mathematician by Kevin HoustonMathematics by Eric Temple BellMakers of Mathematics by Stuart Hollingdale
Cambridge Mathematical Reading List
3rd out of 10 books — 1 voter
Mathematics and Its History by John StillwellHow to Study for a Mathematics Degree by Lara AlcockNumbers and Proofs by R.B.J.T. AllenbyTowards Higher Mathematics by Richard EarlHow to Think Like a Mathematician by Kevin Houston
Oxford Recommended Mathematics Reading
5th out of 43 books — 2 voters