Other examples (just to give an idea of the choice), thematic sample,
with scholarly work, popular science, and other types :
Recent theorems
Four Colours Suffice: How the Map Problem Was Solved de Robin J. Wilson
Proofs and Confirmations: The Story of the Alternating Sign Matrix Conjecture de David M. Bressoud, William Watkins, Gerald L. Alexanderson, and Dipa Choudhury
Kepler's Conjecture: How Some of the Greatest Minds in History Helped Solve One of the Oldest Math Problems in the World de George G. Szpiro
20th century
The Honors Class: Hilbert's Problems and Their Solvers de Benjamin H. Yandell
Mathematical Analysis During the 20th Century de Jean-Paul Pier
Development of Mathematics 1900-1950 de Jean-Paul Pier
The Mathematical Century: The 30 Greatest Problems of the Last 100 Years de Piergiorgio Odifreddi
Biography
Ludwig Wittgenstein: The Duty of Genius de Ray Monk
Von Neumann, Morgenstern, and the Creation of Game Theory: From Chess to Social Science, 1900-1960 de Robert J. Leonard
The Random Walks of George Polya de Gerald L. Alexanderson
Logic's Lost Genius: The Life of Gerhard Gentzen de Eckart Menzler-Trott
Auto biography
Indiscrete Thoughts de Gian-Carlo Rota et Fabrizio Palombi
Discrete Thoughts: Essays on Mathematics, Science, and Philosophy de M. Kac
A Mathematician Grappling With His Century de Laurent Schwartz
= "Un mathematicien aux prises avec le siecle" original french title
Photographs
Mathematical People: Profiles and Interviews de Donald J. Albers
Source books
(because it is invaluable to read the original articles)
From Frege to Godel: A Source Book in Mathematical Logic, 1879-1931 de Jean van Heijenoort
Yearly compilation
What's Happening in the Mathematical Sciences 200x-200x+1 de Barry Cipra
Math and society
The Rise of Statistical Thinking 1820-1900 de Theodore M. Porter
other
Abrégé d'histoire des mathématiques, 1700-1900
6000 Jahre Mathematik: Eine Kulturgeschichtliche Zeitreise - 2. Von Euler Bis Zur Gegenwart de Hans Wussing