I sold the inspiring "Modular Crochet" by Judith Copeland a while back in my Etsy supplies shop, www.ProvisionsbyElvee.etsy.com, but I still have this photo of the cover.
The book didn't contain instructions for hats, so I've been on the lookout for vintage patterns, and I've found a couple of them.
First up will be a ribbed, big-cuff hat from a '70s Bernat leaflet. I'll post this hat next week.
I have another ribbed, big-cuff hat pattern from a 1976 Columbia-Minerva Learn to Crochet pamphlet by Gabriele Knecht. That hat has some top shaping that looks interesting.
Finally, I'm working on my own design, which uses the big-cuff idea and adds a crunchy-textured stitch pattern and a refined edging.