A bit outdated, I know. It covers a lot more than just Rails...
I've been digging into this book and want to say that it is an outstanding, and pragmatic introduction to some advanced system architecture and design ideas. It does use Ruby (and Rails and Sinatra) but the essential concepts are fairly universal.
I give this book 5 stars because of it's fantastic content, however to people buying the book you should know that the code is outdated. This book was made back when Rails 2 was popular and now we're on to Rails 4.
Paul McFedries
Paul Witcover
Paul Gilbert
Paul McNally
Paul Edmonson
Paul Rees
Paul Thurlby
Paul Thurlby
Paul Doherty
Paul Doherty
Manoranjan Paul
Paul Mosley
Paul Reizin
Paul Douglass
Paul Gay
Paul Mosley
Manoranjan Paul
Paul Reizin
Paul Verhaar
Paul Verhaar
Manoranjan Paul
Paul Mclaughlin
Paul Benson
Paul Muldoon
Paul Dutton
Paul Ford
Paul Gipe
Paul E. Bierly
Paul Farmer
Paul Iganski
Paul E. Bierly
Paul Armstrong
Paul M. Pilowsky
Paul Gilligan
Paul Jukes
Paul Jukes
Paul Corby Finney
Paul O'Leary
Paul Tautges
Paul du Gay
Paul Moran
Paul Jukes
Paul Sloane
Paul Gover
Paul Simpson
Herman Paul
Paul Doherty
Paul Lussier
Paul Armstrong
J. Paul Robinson
David Sirota
Milan Kundera
Peter Ricchiuti
Doug Lennick
Turgut Erbek
Wilda Rinehart
Curtis Frye
Patrick Kanouse
Osman Z. Barnawi
GREER
Laurent Le Forestier
Isabel von Holt
Ludwig Tieck
Dianne Draze
Tania Gold
Paul Russell
Mark Bergen
Jean G. Jones
Ernst Kurth
André Coret
Shalini Vallepur
D.H. Lawrence
Fen Osler Hampson
Edouard Louis
J. Kohler
August Wilhelm Schlegel
Brendan M. Howe
Wai-yan Ronald Tang
Ian Yearsley
Bodhi Hunter
Vishnupriya Thacker
Marjorie W. Hirsch
David Baker
Michael D. Waters
Todd Stanley
Richard Cote
Michael S. Matthews
Wendy Ashcroft
Michael A. Scott
Christoph H. Loch
Karen Woods
Manuel Díaz-Campos
Roy H. Dennis
Ratnesh Tiwari
Gilbert Delahaye
Valerie Christmas
Stuart Peachey
Marcel Marlier
E. K. J. Wright