1. Find Out! First Step to the Future.
Written by Dr Dan Q. Posin.
2. Engines, Progress and Power
Written by Don E Rogers.
Both published by Whitman in the 1960s.
Condition: Good (some light wear and tear to spine corners)
Two 1960s Learn About books from Whitman, exploring with awesome retro graphics what was then futuristic, and is now ubiquitous. Sold as a set of two.