While the book is published in 2002, it has very dated info in it. Just in the front, they talk about how it is not uncommon for users to have disks 'up to 340 MB'. Oh come on.
They have a list of tools, most of which are 'DOS based for speed'. (Why don't they say command line? Of course it is DOS based. Do they mean early MS-DOS?) ... Rather than point you to a free UNIX/Linux 'dd' command, they point you to some commercial solution.
There are a lot of stories in the book. But no examples on how you would do something similar if you needed to. There is a section that recommends you 'leave it to the pros'. It is like one big ad for the author's company.
There are lots of weird sections on things like secret HERF guns to disable computers. Whatever. Nothing a normal person would care about.
If you want to do computer forensics, this book is not for you.