I'm a total newbie. I like to refer to myself as "technology illiterate". I asked my son to get me a kindle e-reader for Christmas. About 6 weeks later this is what I got. I am not complaining at all. It's just that I wanted basically a reader. Like I said, " I am a complete tech dummy and it is going to take me a while to learn how to use this tablet which is a Jelly Bean v4.2.1. I have put(uploaded/downloaded,not sure of the correct terminology) some ebooks (which are in the form of PDF's) on my micro sd card. I cannot figure out how to access/open them. The reading apps that I have are "Kindle" and "Adobe Reader". Should I be using some other app? In anything I have read lately, it says that my toolbar should be at the top of the screen but, mine is at the bottom. There is no icon showing an sd card. It is listed in the settings app though. Under "Settings", it says three things about the card: 1) the available space left: 2) total space; and 3) asks if I want to delete it. I can't think of anything else you might need to know in order to help me. Also ever since I got this tablet, I have been looking all over the internet for a user's guide or owner's manual. I have not been able to find one. If anyone knows where I can download a copy, please let me know.