Essential ActionScript 3.0 by Colin Moock This errata page lists errors outstanding in the most recent printing. If you have technical questions or error reports, you can send them to booktech@oreilly.com. Please specify the printing date of your copy. This page was updated July 26, 2007. 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 ?page-number?: reader question or request for clarification (25) top of last paragraph; Where the book states 'Using the preceding generalized parameter code is a guide...', shouldn't the 'is' be 'as'? (119) Paragraph 2 (and possibly paragraph 1 as well); In the second paragraph, there are two unended quotes: "Has-A and "Uses-A These should both have ending quotation marks. Furthermore, if this is the style for the introduction of these terms, then the first paragraph on page 119 should wrap the first occasion of "Is-A" in quotation marks, which it does not currently do.