Instruct: Classify a given Amazon review as either positive or negative.
Query: a must-have for climbing in SD

Bought it used as it's out of print but it was in great condition. It's a must-have if you don't want to carry around a bunch of loose sheets. If you don't want to buy the book though, you should know that all the topos are available at: [....]I just like having an actual book to bring along.