There are dozens of apps and services you can use to back up a Mac, and the list is constantly changing. The book helps you figure out your best strategy for making backups in macOS, and then it covers all the details of set up, testing, maintenance, and restoration. The content here is free to all, but it is associated with a commercial book, written by Joe Kissell and published by alt concepts inc. Welcome! If you want to compare features in Mac backup products and services, you’re in the right place.