I've seen Card Control at borders a time or two.
I want to second Royal Road. There are some very clever ideas in that book that can be a lot simpler and a lot more focused on magic - as opposed to gambling. There are a lot of smaller, easier sleights that would have little-to-no use for a gambler, mixed about 50/50 with a nice focus on routines.You may also find 'Royal Road to Card Magic