This page lists unconfirmed errors and comments from readers. They have not yet been approved or disproved by the author or editor and represent solely the opinion of the reader. The Art of Agile Development, 1e by James Shore, Shane Warden The catalog page for this title is http://www.oreilly.com/catalog/9780596527679/ This page was last updated August 1, 2008. If you have technical questions or error reports, you can send them to booktech@oreilly.com. Please specify the printing date of your copy or the digital version accessed. Here's a key to the markup: [page-number]: serious technical mistake {page-number}: minor technical mistake : important language/formatting problem (page-number): language change or minor formatting problem UNCONFIRMED errors and comments from readers: {26} table 3-5 last Thinking practice: retrospectives; Retrospectives are marked "implied" for Scrum. There are mentionned as "Sprint retrospectives" in Ken Schwaber' " Agile Project Management with Scrum" (ISBN 978-0735619937) on pags 102, 110, 115, 138 and more ... (263) Intro to story about estimating; In the introductory sentence, one of the team members is referred to as "Jo" but later "Joe". {383} Second para under Design Trade-offs; It says here that "C++ adds virtual method lookups--four bytes per method [...]". As far as I understand it, this isn't true. There's a four-byte overhead per _additional vtable_, where a vtable consists of a number of methods. There's one vtable associated with each abstract base/interface, and so the overhead amounts to four bytes per base class with virtual methods.