This is one of those books that you come across and buy (at the right price) because you want a bit of entertainment, amidst recognisable, sometimes uncomfortable events and experiences. It also helps, in a way, if you've had some experience as a manager or consultant of some kind and are able to laugh at yourself, and others, hopefully the latter as you may not want to admit to participating in or encouraging some of the dubious, or even stupid activities described here. If you've never reached become either of these, then it may be less funny if you've been on the end of some of this stuff.
"500 reasons" means 5 reasons for each of 100 categories, presented in alphabetical order. They don't all work, but I got more than 100 laughs out of the book. There are also many astute comments about buzz words, communication, consultants, creativity, motivators, psychometric testing, public-private partnerships, teams, training courses etc. etc. On the latter, I met a person recently who apparently had been a trainer in an organisation that dealt with unemployed people, who claimed that he could work out who really wanted a job. His method was one of those survival scenarios, where there are right answers. How that related to wanting a job or not, or anything else, totally escaped me, but I suppose he liked it. I would have refused to do the exercise, but I'm like that.
The examples are British; English, essentially, so some examples are culturally relative, and that has its own interest.