The El Capitan Edition of Customizing OS X is the 4th book in the Customizing OS X series and contains over 400 fantastic tweaks, hacks, secret commands, and hidden features to completely customize your OS X El Capitan user experience. Learn how to completely personalize your Mac, fine-tuning every aspect of OS X to help you become more productive and efficient by making OS X El Capitan more closely match your personal computing style. You will learn how to tinker and tweak OS X, bending it to your every will and squeezing every last drop of performance out of your Mac. Customizing OS X shows you how to completely customize your user experience until your Mac has its own unique look and feel. New chapters show you how to create your own custom trackpad and mouse gestures, snap windows, make your Mac more secure, and boost the performance of older Macs. You don't need to be an Apple genius to customize OS X. Learn how you can safely and quickly customize and personalize OS X El Capitan. Why customize your Mac and OS X? Well, because you can. It's that simple.