Rating: 

This book needs less talk and more definition. I was somewhat dissapointed to find that proprietary properties like innerHTML can be found but a simple method like setSelectionRange() isn't. I had to discover it via google and not my book :(

The upside is the layout. There's a lot to cover with Javascript and this book at least makes an attempt to do so. The client and Core objects/functions are separated nicely for reference. But it needs to be more complete.