I'm a newbie to all android. I have a Samsung Note Tab 10.1. wI-fi. I've set up a Google account and have installed some apps from Google Play. I also opened a Nook account through Barnes and Noble. I'm perplexed by how the tablet is supposed to work when it is offline. I bought a book from Nook but can only view it if I'm online. I suspect the same is true for other kinds of files. Are there other merchants that allow the file to be resident on your device so you can read a book on a trip, or stream music files in the car? I thought that that was what storage capacity was for. Or perhaps there is some very basic setting I should adjust, or an app for just this purpose, or a method of saving files? I have installed a 32gig sd card. Why are lists of android apps always unalphabetized? Is search the only alternative? Thanks in advance.