Hello & welcome to MR. You must have been very good to have received such a fine present.
If you have any questions regarding the reader, check out the
subforum for Kindle. Lots of questions have been answered. If yours isn't among them or you can't find it, just ask. Plenty of helpful folks around here.
Also check out the
eBook library from MR. Sooooo many free books, lovingly formatted by MR members. That'll keep you reading for a while.
And don't forget to look into the
Lounge if you want some fun.