If you're a Mac user wanting to know how to protect your Mac, my ebook Back Up Your Mac With Time Machine, it's now free on the iBooks Store for a limited time.

Backing Up Your Mac With Time Machine breaks down each feature of Time Machine, the built-in backup utility of Mac OS X, from setting it up with an external hard drive or Time Capsule to restoring files and even your Mac.

You’ll find easy to follow instructions and screenshots as well as over an hour of specially recorded screencasts and interactive elements to aid you even further.