Apogee Books Space Series is a 10-book series with 10 released primary works first released in 1977 with contributions by Gerard K. O'Neill, Sy Liebergot, David M. Harland, Frederick Ira Ordway III, Mitchell R. Sharpe, Ed Buckbee, Wally Schirra, Wernher von Braun, Irene E. Powell-Willhite, Randall Whitcomb, James Dewar, and Jeffrey Manber.