I confess I am not a climber unless you count a day at plas y brenin doing bouldering and absailing but i had to share a documentary I watched on netflix last night called Valley Uprising
https://www.imdb.com/title/tt3784160/
Its about Yosemitie Valley climbers dating from the 1950's to today , it was riveting and informative an best of all enjoyable and it was interesting to see what equipment was used and not used to climb famous climbs like el capitan, half dome etc
Check it out if you have not seen it yet