Nothing on crashes. Well nothing in the index. Advice on kdump - page 31-32 amounts to ( and it may be a test machine, but it's the only bit of the index which references kdump) ignore kdump. Don't worry about the message you get saying insufficient memory to run kdump. Is that good advice to any admin? Maybe under particular circumstances, but why not explain kdump, and why you're not bothering to configure it. This book is incomplete. Everything so far I've tried to find in the index has either been non existent, or covered in a very cursory manner, as above.
In common with many admin books, this covers the basics (probably very well - I wouldn't know as I'm beyond the basics), but totally ignores anything beyond.