We are told that
Science writer Carl Zimmer and evolutionary biologist Douglas Emlen have teamed up to write a textbook intended for biology majors that will inspire students while delivering a solid foundation in evolutionary biology. The free app contains the first chapter of their book, which will be available for purchase on August 15, 2012.
Readers, what other such books’ first chapters are free for download?
Hat tip: Pos-Darwinista