Books for increasing proficiency

I was at an AS3 course recently and the instructor mentioned a book that had something to do with AS3 game examples. Has anyone seen something like this and liked it? The problem is I am fairly new to AS3 and it is coming slower than I had hoped. I am the only person in my office who deals with Flash and I also have other responsibilities. So, I am looking for ways to increase my proficiency. Can anyone suggest any books or tutorials or any other advice?

Thanks in advance.