Neither of the books that I'll recommend here are specifically about learning to play analog synths, but they both give a bunch of background to understanding analog and digital synthesis:
I read an earlier edition of this when I was getting into working in electronic music, and found the background very useful and a pleasure to read.
This one is specifically not about analog synthesis (but rather digital synthesis and sound processing), but is kind of a classic in the field:
The most common physical analog synths have two to three oscillators and a resonating filter. The first book would give you enough info to know what that means and begin to explore the space a little more intelligently.
Assuming you're a programmer, you can also do a lot of things by creating synths using either a visual or code-based synths on your own. I'm partial to ChucK, but there's also Supercolider, CSound, Max, Pd, Reaktor, ...
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