I'm new to this e-reader business and was excited about it when I started but have discovered something I don't like. I started a series of 18 books in iBooks and then discovered that Apple doesn't have one book in the series. Barnes and Noble did have the missing book so I got it from them but I can't open it in iBooks. I complained to B&N about it and was told I would have to use nook to read it. If I have to arrange books by where I bought them rather than by author I'm thinking e-books are not for me and i'll be better off sticking with paper.