The Unofficial Guide to LEGO MINDSTORMS Robots by Jonathan Knudsen Following are the changes made in the 12/99 reprint. 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 The following text was added to Preface, replacing the "Requests for Comments" section: "How to Contact Us We have tested and verified the information in this book to the best of our ability, but you may find that features have changed (or even that we have made mistakes!). Please let us know what we can do to make the book more helpful to you. We take your comments seriously, and will do whatever we can to make this book as useful as it can be. Please let us know about any errors you find, as well as your suggestions for future editions, by writing to: O'Reilly & Associates, Inc. 101 Morris Street Sebastopol, CA 95472 1-800-998-9938 (in the U.S. or Canada) 1-707-829-0515 (international/local) 1-707-829-0104 (FAX) You can also send us messages electronically. To be put on the mailing list or request a catalog, send email to: info@oreilly.com To ask technical questions or comment on the book, send email to: bookquestions@oreilly.com We have a web site for the book, where we'll list examples, errata, and any plans for future editions. You can access this page at: http://www.oreilly.com/catalog/lmstorms/ For more information about this book and others, see the O'Reilly web site: http://www.oreilly.com"