Dani and Eytan Kollin have the distinction of being the only sibling collaborative science fiction writers today. Their most frequently asked question is, "How on earth do you manage to write together with minimal loss of blood?" The Unincorporated Man is their first work together and the first novel of three bought by Tor.

Eytan Kollin is a teacher of history, government and economics currently living in Pasadena, California. His hobbies include historical reenactments, chess, and battle recreation with historical melee weapons. The Unincorporated Man is his first published work.

Dani Kollin, co-author of "The Unincorporated Man", is an advertising copywriter currently living in Los Angeles, California. Dani has also worked as a creative director and copywriter in the print, broadcast and new media fields. In addition to being happily married and the proud father of three children Dani is also an avid endurance cyclist and surfer.