Dear friends of GeoGebra, Judith and I have just put the first version of our new booklet "Introduction to GeoGebra" online. online: http://www.geogebra.org/book/intro-en/ print: http://www.lulu.com/content/2650846 This book is intended to be used for introductory workshops of GeoGebra or for people who want to learn GeoGebra on their own. We have put it under a Creative Commons Attribution-Noncommercial-Share Alike (see http://creativecommons.org/licenses/by-nc-sa/3.0/) license. This means that everybody can use and ADAPT the materials for their own purposes. In particular, you are free to create translations of the book (for non-commerical purposes, of course). If you are interested in making translations of the book or parts of it, you can find the Word document (doc file) and a zip package with all files and worksheets used in the book at: http://www.geogebra.org/source/translation. If you make a translation, we would offer to share it on the GeoGebra webpage in the same way that we do with the English version already (online and print version). All the best, Markus & Judith