I have a rationalist/rationalist-adjacent friend who would love a book recommendation on how to be good at dating and relationships. Their specific scenario is that they already have a stable relationship, but they're relatively new to having relationships in general, and are looking for lots of general advice.
Since the sanity waterline here is pretty high, I though I'd ask if anyone had any recommendations or not. If not, I'll just point them to this LW post, though having a bit more material to read through might suit them well.
It's written from a Christian perspective, but "Things I wish I'd known before getting married" by Gary Chapman is extremely good: 90% level-headed good sense and 10% Christian moralizing. I recommend it for any new couple.
I like John Gottman's books. He has written several, any would be good. My favourite is "And Baby Makes Three." He is a therapist who studies married couples in a lab, and can see what works and what doesn't.
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