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Science Fiction Writer  ROBERT J. SAWYER  Hugo and Nebula Award Winner SFWRITER.COM > Novels > Factoring Humanity > North American Cover North American Covers   Factoring Humanity   Covers of the North American edition of Factoring Humanity, published by Tor. The June 1998 hardcover (ISBN 0-312-86458-2) is on the left, the May 1999 paperback (ISBN 0-812-57129-0) is in the middle, and the 2004 Orb trade paperback (ISBN 0-765-30903-3) is on the right. Click on the trade paperback (far right) for a larger version. The woman depicted in negative is Heather Davis, the novel's main character. Four-dimensional geometry figures in the plot, hence the extended unfolded tesseract at the bottom. On the hardcover dustjacket, only the black rectangle containing Heather's face is varnished (giving it a glossy finish); the rest of the cover has an unvarnished matte finish. For the curious, here's Heather in positive image: Jacket art and design by Shelley Eshkar and Jan Uretsky.   More Good Reading   More about Factoring Humanity cover art index   Twitter Feed   Home Novels About Rob For Book Clubs Blog Search Short Stories Press Kit How to Write Facebook Buy Books Nonfiction E-mail Rob Canadian SF Twitter