Hasslein Books

Hasslein Books (hassleinbooks.com) is a New York-based independent publisher of reference guides by geeks, for geeks. Named after Doctor Otto Hasslein, a physicist and time travel expert portrayed in Escape from the Planet of the Apes, the company’s lineup of unauthorized genre-based reference books includes timelines and encyclopedias covering the Planet of the Apes franchise, as well as Back to the Future, Doctor Who, Watchmen and Red Dwarf.