I've been working with Macromedia MX 2004 until recently so this book was to help me with the conversion to Adobe CS5. It's well presented and although I am only half way through, it has helped me pick up plenty of tips already. Don't know if it would be the right choice for an absolute beginner though, as it focusses on the how and not the why - no real preamble. But like I said, for me it is just the ticket. I now have 5 of the CIB series books sitting on my desk (FW, AI, DW, Flash, PS)so I'm obviously fairly happy with them. Also, I'm using a dual-booting iMac and this book is fine for either OS. Hope this is of help.