Amazon.com just posted my four star review of Perfect Passwords. This brings my dozen-Syngress-book reading drive to an end. Note that I read the first several books on flights over the Atlantic or waiting in airports. That gave me a jump on the reviews. From the review:
I never thought I would find a whole book about passwords to be interesting, but I really like Mark Burnett's Perfect Passwords. This short book (134 pages without the appendices, which can be ignored) is remarkably informative. I recommend anyone developing password policies or security awareness training reading Perfect Passwords.