We try to keep our books accurate, but sometimes mistakes creep in. This page lists the errors submitted by our astute readers. If you've found a new error, please submit it.

The latest version of the book is P4.0, released about 1 year ago. If you've bought a PDF of the book and would like to upgrade it to this version (for free), visit your home page.

Key: Typo Tech. Error Suggestion Not a problem Next edition

By default this page displays the errata for the latest version of the book. If you have a previous version, select it here:  

(To find out what version you have, look at the copyright page, a few pages in from the front of the book. If it says (say) 'Second Printing', then here it'll be P2.0. If there are interim PDF releases in that printing, they'll be 2.1, 2.2, and so on.)

PDF Paper Description Found in Fixed in
56
#76284: For the example 'favorite things', should be 'whiskers on kittens'... whiskey on kittens is just cruel. :) \ / \ ...more...
P4.0
11-Jan-14
66
#76467: In the method 'ask' the answer variables are declared in the private scope of an 'if' then used later as the return at which point it is inacc...more...
P4.0
03-Mar-14
87

#53022: Text halfway down page reads "Viola!" While this is a recognized English word, it ought to read "Voila!"--Luke

P4.0
12-Oct-13
116

#53080: ". However, none of these is actually called until the very last line.)"

Shouldn't it be "none of these are"?

P4.0
26-Oct-13