This book aims to cover the practical aspects of using the extensive reverse engineering framework, radare2.
Webpage: https://www.gitbook.com/book/monosource/radare2-explorations/details
Online: https://monosource.gitbooks.io/radare2-explorations/content/
PDF: https://www.gitbook.com/download/pdf/book/monosource/radare2-explorations
ePub: https://www.gitbook.com/download/epub/book/monosource/radare2-explorations
Mobi: https://www.gitbook.com/download/mobi/book/monosource/radare2-explorations