Constructed from an English and a French edition of L’Univers (The Universe). Having two copies I was able to use some images for letter cut-outs that would otherwise have been back-to-back on a page I needed for a background.
In principle this TIME-LIFE series is open-ended, but I haven’t come across another publication that sparked my interest enough to continue it yet. The material I work with generally comes from flea-market / thrift-store finds only, I’m not chasing books down online for the sole purpose of cutting them up.