Reddit reviews Roof Framer's Bible: The Complete Pocket Reference to Roof Framing 2nd Edition
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If you want to get into the weeds of it, take a look around Sim Ayres page SBE Builders
http://www.sbebuilders.com/crown/
Most roofing problems involve compound miters, like hips and valleys and intersecting roof lines, so pretty much any book on hand cut roofs will give you some background. I'd suggest Roof Framer's Bible https://www.amazon.com/Roof-Framers-Bible-Complete-Reference/dp/0964335433
There's also the book "Construction Geometry" by Brian Walmsley that I think is still being used for carpentry classes https://www.amazon.com/Construction-Geometry-Brian-Walmsley/dp/B000RS02UI
Personally, I figure it out all in sketchup now, the visuals help me understand it a bit better. This is a good video on how to calculate compound miter angles in a sketchup drawing
https://www.youtube.com/watch?time_continue=654&v=IWEwfSbUlIY