Holy crap! Just discovered that the Rand Corporation has made its landmark 1964 study Habitable Planets for Man
by Stephen H. Dole available for free as PDF
(scroll down to the link to the free download, of just click here
). This is it, folks, the world-building bible; I paid a fortune years ago for a used hard copy ... Enjoy!
Visit The Robert J. Sawyer Web Site
Labels: Science, Writing