I gave How to Blog ... a three star review because the material is repetitious. Each chapter harps on the same phrase, "Write awesome content," said in different ways. By the time I got to chapter six I was rolling my eyes and whispering, "Okay, I get it."
Overall, the book is helpful in a few ways, i.e, how to build a Pinterest following, and the importance of good images, etc. etc., but it doesn't provide concrete ways to earn money. Each suggestion has a caveat that it may not work. Also, if you do not have 50k followers or more, forget it, don't bother reading the rest of the book, there are few ways to actually earn money until you build your readership.
I suggest reading a book on how to build a readership, prior to glancing at this title.