Yes, I like HCB, Riboud and Robert Frank. Yes the Arbus book has a lot of proof and contact sheets. The Contacts V1 is great, esp the episode on HCB.
B/W mag has contact sheets once a while. I like them too.
I am wondering if they every publish their entire archive, even for those who have passed away. Do they ever release them or these are something never going to be released/published.
By studying their Contact sheets one can really learn a lot, better than any books, even those written by themselves.