The "Venusian Arts Handbook" is the Bible on pickup, hands down. It was the first real Mystery Method manual. The problem is that it's hard to learn Mystery Method only by reading... that usually just leads to people behaving very weirdly in field. But it's worth getting that knowledge. Also "The Game" is underrated, you'll get a lot out of that book if you read between the lines right.
"Double your Dating" is great on all the fundamentals.
Vin DiCarlo's book is great, "Attraction Code".
I'll second "Models" by Mark Manson.
Swinggcat "Real World Seduction".
No more than this lol. Stop reading after those.