As you were 'kind enough' to PM me about this book I will ask a few questions.
1) Do you explain what a gTLD is compared to a ccTLD?
2) Do you discuss the merits or otherwise of ccTLD's
3) Do you explain what a 'hacked domain' is?
4) Do you explain that certain countries have restrictions on registered users of their domains?
5) Do you list current costs of gTLD's and ccTLD's?
6) Do have a list of the major hosting companies and their costs plus of course the differences in their hosting packages?
7) Do you list the top companies that offer CMS development systems, what their costs are and what their major packages consist of?
8) Do you explain that buying traffic to visit a 'parked domain' is not permitted by the major parking companies?
9) Do you explain that the costs for transfers of certain ccTLD sales are higher at Sedo than some gTLDs?
10) Do you point out the most common types of 'hoax offers' made and the general pattern they follow?
11) Do you point out that most domainers never recover their investment from their portfolios?
12) Finally, do you point out that the whole system is so totally under-regulated (if at all) that all domainers, novice and experienced, are constantly having to watch everything that is going on?
I obviously have not read the book, but I would hope that these (and they are just a sample of possible points) are covered so that those thinking of joining this market can get a heads-up on what the business entails.
I wish you all success with the book, especially if it contains decent information on at least some of the above points.