Two uncommon softcover books: On the Shoulders of Titans: A History of Project Gemini, 6.75 x 9.75, 625 pages, published by NASA in 1977; and Project Gemini: Technology and Operations, A Chronology, 7.75 x 10.25, 308 pages, published by NASA in 1969 as part of their Historical Series. Both volumes were prepared by Barton C. Hacker and James M. Grimwood. In overall very good to fine condition, with a few creases to back cover and pages of Project Gemini, slight wear and rubbing to spines of each, with Project Gemini spine also bearing a small dent. From The Bill Lende Collection.
