Jane Goodall Farley Mowat George Schaller Natalie Angier Diane Ackerman Clifford Pickover Howard Pyle Peter Lefcourt Bernd Heinrich Craig Childs Albert-Laszlo Barabasi Joseph Hansen Charles Seife Guy Murchie Stephen Leacock Dora Levy Mossanen Evelyn Rogers Tony Hellerman Geoffery Chaucer Randy Pausch R.J. March Robert Lynn Asprin Nicholas Baker Pierre Berton Colin Fletcher Ethan Mordden Edwin Abbott James Gleick Lyndsay Sands Richard Stevenson R.D. Zimmerman Roger Penrose Colette Dellilo Patterson Sheri S. Tepper Jon Krakauer Mark Helprin Helprin Richard North Patterson Douglas Hofstadter Amy Tan Christian Kracht Arundhati Roy Bill Bryson Barbara Kingsolver Christopher Moore Charlaine Harris John Irving