I already read at least 42 books about dividends (I just counted word "dividend" in books title or subtitle) and "The Dividend Investor: A practical guide to building a share portfolio designed to maximise income " by Rodney Hobson is one of the best.
The author provides detail explanation of principle and nuances of dividend investing together with carefully selected case studies that illustrate almost all author's statements.
The book is focused on UK stock market, although the arguments and guidance provided are relevant to US and other major stock exchanges around the world. I believe that the book is useful not only for dividend investing newcomers but also for savvy investors.
I like not only the book itself and but also a perfect editors work. Thank you folks!
TIP: I'd recommend buy a paper copy (it comes with free ebook).