Modern Marvels of Flight (1956) fits into the British aviation category of books. The British much more than the Americans (seemingly) would have a chapter or two about spaceflight put in books that were primarily about aviation. This one is particular shows the basics of rocketry.
Foster-Page, George. Illustrated by Baker, Denys. Modern Marvels of Flight. London : Ward, Lock and Co. Ltd. (64 p.) 26 cm. (1956)
The best things about it are the cover and this one color illustration.
This is the entire short section about "Rockets into space" pp. 28-31.