I have been using a PC for years and since Christmas I have constantly been asking my husband questions about using my new MacBook Pro, so this book was perfect for me.  It is presented in a very simple, easy to understand format, and doesn't assume one is a computer geek, which is great for me.  I would have given it 5 stars, but I looked up something which was not covered in the book which seemed like a very basic subject, which was frustrating, so I gave the review 4 stars.  If you are starting out with a Mac or are not very computer savvy, I would recommend this book.  It is one I keep close by to my Mac.