Reddit reviews Fifty Favorite Climbs in North America: The Ultimate North American Tick List

Along with any gear she might not have I might suggest Fifty Classic Climbs and/or Fifty Favorite Climbs if she is into reading/is considering transitioning outdoors. Not necessarily to learn skills or techniques but more about climbing itself. The first one is a classic and the second one cover more modern climbers and their favorites. Lots of great perspective.

For a book on one route, Doug Scott's book about the Ogre has a lot of history of the mountain, the area, then tells the story of the first ascent's expedition in detail (he and Chris Bonington were the summit team). https://www.amazon.com/Ogre-Biography-mountain-dramatic-ascent-ebook/dp/B0779F4RRG/

I also really enjoyed the mountain profile of Jannu in Alpinist magazine 57 https://shop.holpublications.com/products/alpinist-magazine-issue-57?variant=29425193844824 Jannu's north face is one of the great faces of the world and this digs into it in detail.

Edit: Also, 50 Favorite Climbs is a great book with profiles of some more challenging routes than a lot of the "classic climb" compilations along with profiles of a ton of badass climbers. The author interviews 50 of the top climbers of the day about their climbing history and he writes a profile of their favorite route in North America. It's a cool mix of rock, ice, and alpine. Goes in sort of the same category as books like Beckey's 100 Favorite Climbs and the old 50 Classic Climbs of North America. All three of those might be good for you. https://www.amazon.com/Fifty-Favorite-Climbs-North-America/dp/0898867282 https://www.amazon.com/Beckeys-Favorite-North-American-Climbs-ebook/dp/B00GCDYVPE https://www.amazon.com/Fifty-Classic-Climbs-North-America/dp/0871568845/