• Yes! NASA have got Boris Chertok's Rockets and People volumes 1-4 as free ebooks as well. They're massive, I think I got about halfway through Volume 1 but then ended up wiping my phone, have put them on my kindle now and will get around to them at some point. Interesting to get the Russian perspective on WW2 aircraft and rocket design (and space race presumably in volumes 2-4).

    Edit for link: https://www.nasa.gov/connect/ebooks/rockets_people_vol1_detail.html

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