Best starting point is Bob Cassidy's FundaMentals. It is on lybrary.com. Anneman and Corinduna are great resources but dated.
If you are are looking for mental magic tricks as opposed to serious mentalism, get Rich Feurgeson's This is Mentalism videos and Nate Kranzo's Boondock Mental video. For card tricks with a mentalism presentation get Banon's Mentalissmo.
If you are serious about mentalism, you want to look at books by Banachehck, Leslie, Maven, and Waters. Get Elliott Bresher's Switchcraft. From there you can branch out into cold reading, palm reading, and tarot.