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[I want to start 2011 in a renewed spirit of generosity and sharing, so here are the complete PDFs of my last 3 books, for free; provided under a Creative Commons,non-commercial, share-alike, attribution license (see below). If you still want to buy the dead-tree versions of these books (or donate something for the free PDFs - yes, that's an option, too;), you can visit my Lulu Store, or go to Amazon.com, or check out my 'Paying for Gerd' page. You can also return the favor by blogging or tweeting of Facebook-liking my stuff. Thanks, and enjoy, and have a great 2011. Update: my free videos (50+ keynotes and presentations) are here, the iTunes podcast feed is here (just subscribe to download all videos to your iPod / iPad / iPhone, or computers), and my free slideshows (90+) are here, on Slideshare :)]