@karolinka
Cory Doctorow typically releases his books under a Creative Commons license, so you can download a free electronic copy of the book, including in Kindle format from http://www.feedbooks.com/book/2466/little-brother or http://www.gutenberg.org/ebooks/30142. When you read it, if you like it you can buy a copy :). Cory Doctorow is also a great proponent of the Creative Commons licenses (http://en.wikipedia.org/wiki/Creative_Commons_licenses) and has published a number of essays on the subject.