Get It/Bookshelf / Bookshelf

n a library or bookstore,you always find it difficult to take out or put back the book when the bookshelf is filled with books because of great pressure.
"Get It"is a bookshelf consisting of some coaxial units.When it’s still,the books are at the back side with a slight slope.When you want to take a book,press the the front-end of a unit to let it incline downward,then the book will be lifted or slides out smoothly.Thus,it is easy to take a book since the baffle offsets part of the pressure coming from the contiguous books.When you want to put it back,just lift the unit,so the book will slide back to the former position due to gravity.