ibooks question

I am new to ibooks.  Previously have used Nook.  I download a lot of books and rather than open each one to see what it is, I was able to hold down the icon for the book and a description would pop up.  I cannot find a feature like this in ibooks.  I hold down the icon and it opens the book, I just want to see the description.  Does anyone know how to do that?

Thanks, Patty

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