I don’t really intend this to be an advert but for a while now I’ve half intended to pick up a copy of John Graham-Cumming’s The Geek Atlas. I just bought a DRM-free ebook half price as part of an International Day Against DRM promotion.

The publisher says this about the book:

The history of science is all around us, if you know where to look. With this unique traveler’s guide, you’ll learn about 128 destinations around the world where discoveries in science, mathematics, or technology occurred or is happening now…
Each site in The Geek Atlas focuses on discoveries or inventions, and includes information about the people and the science behind them. Full of interesting photos and illustrations, the book is organized geographically by country (by state within the U.S.), complete with latitudes and longitudes for GPS devices.

Today only, in support of International Day Against DRM, the publisher O’Reilly are offering all their ebooks half price (DRM-free, naturally), which includes The Geek Atlas. The list price is $23.99 but when you add it to the shopping cart it adds the code “DRMFREE” and halves the price to $11.99 (currently approximately £7.40). So I got a copy (in APK, ePub, Mobi, PDF and DAISY formats).