"Note that both Learn TLA+ and Practical TLA+ don't teach much of TLA+, but rather a language called PlusCal that compiles to TLA+. Some programmers may find it

"Note that both Learn TLA+ and Practical TLA+ don't teach much of TLA+, but rather a language called PlusCal that compiles to TLA+. Some programmers may find it easier to start with because, unlike TLA+, PlusCal resembles a programming language" Most evidence indicates using familiar concepts aids learning. That makes me hypothesize the best recommendation is the more mathematical ones for folks strong in math and the programmer-centric ones for those strong in that. That also implies that, for each of these formal topics, we need one version for each audience to draw more people in.