New to Android? We've got you. Google maven? You'll find plenty of hidden tips here, too. We've tapped through every last feature, button, sensor, shortcut, and blaster (seriously) to bring you the tips and tricks that remind us why we called the S4 "the everything phone."
The e-book features hundreds of guides, from setting up your phone and kicking out the bloatware to customizing the interface, using Samsung's exclusive features, and even hooking it up with USB accessories.
By the time you're done reading, you'll have down all the hidden gestures and features only in-depth testing could reveal.
We've once again done the heavy lifting so you can spend less time scratching your head, and more time enjoying all the awesomeness the S4 packs.
And of course, you can find ongoing coverage of the S4 and a wide variety of interesting, fun, and useful tech tips right here at CNET How To.