An O'Reilly book without the popular animal cover design that collects essays where leading programmers explain how they think and present examples of elegant solutions to hard problems.

Author	Subject	Programming Language
Brian Kernighan	A regular expression matcher	C
Karl Fogel	An internal data structure of Subversion	C
Jon Bentley	Quicksort	C
Tim Bray	Web server log file analysis	Ruby
Elliotte Rusty Harold	XML verification	Java
Michael Feathers	The FIT Framework for Integrated Test	Java
Alberto Savoia	JUnit	Java
Charles Petzold	On-the-fly code generation	C, C#, CLR Intermediate Language
Douglas Crockford	Top-down-operator-precedence parsers	JavaScript
Henry S. Warren, Jr.	Counting the number of set bits in a word	C and circuit diagrams
Ashish Gulhati	Secure web-based email	Perl
Lincoln Stein	Data visualisation for bioinformatics	Perl
Jim Kent	A genome analyser web application	C
Jack Dongarra and Piotr Luszczek	Libraries to solve linear equations	MATLAB, Fortran
Adam Kolawa	The CERN mathematical library	Fortran
Greg Kroah-Hartman	Linux kernel drivers	C
Diomidis Spinellis	Layers of indirection in the FreeBSD filesystem drivers	C
Andrew Kuchling	Python's dictionary data structure	C, Python
Travis E. Oliphant	Multidimensional array iterators	C, Python
Ronald Mak	A highly reliable information portal for the NASA Mars Rover Mission	Java
Rogerio Atem de Carvalho and Rafael Monnerat	Enterprise Resource Planning	Python
Bryan Cantrill	Thread synchronisation and prioritisation in Solaris	C
Jeffrey Dean and Sanjay Ghemawat	Map-Reduce	C++
Simon Peyton Jones	Software Transactional Memory	Haskell
R. Kent Dybvig	Macro expansions	Scheme
William R. Otte and Douglas C. Schmidt	A networked logging service	C++
Andrew Patzer	REST (as opposed to SOAP) for integrating business partners	Java
Andreas Zeller	Systematic debugging	Python
Yukihiro Matsumoto	Brevity and human-readability	Ruby
Arun Mehta	A one-button user interface for Professor Hawking	Visual Basic
T.V. Raman	Emacspeak (auditory output from Emacs)	Emacs Lisp
Laura Wingerd and Christopher Seiwald	The Seven Pillars of Pretty Code	C
Brian Hayes	Computational Geometry	Lisp