TidBITS Electronic Publishing today announced the availability of “Take control of Passwords in Mac OS X,” a new ebook by Mac expert Joe Kissell. “Readers will learn to assess risk factors and devise a personal plan for generating different types of passwords, using a special system for creating strong passwords that are easy to remember but virtually impossible to crack. Once that’s done, the ebook explains how to set appropriate passwords for the Mac (account login, master, root, firmware, email, AirPort, keychains), and how to use Apple’s built-in password manager Keychain Access.” The 96-page ebook is priced at US$10, and a 22-page sample is available.