I think flourishes is a little advanced for a beginner, but if you like the challenge go for it. As said before Xtreme Beginners 1 and 2 are really good. The Royal road to card magic teaches a load of sleights and other useful stuff and I think it would be great for any beginner to have. I would strongly recommend the Card College Series 1-5. All the books teach sleights and other great and useful material for all experiences of card magicians. This would be something you should look into also. Hope this helps.
