Features:

-Create a profile
-Sell books 
-Search for book 
-Negotiate prices 
-Contact other users in order to buy and sell books

Benefits:

-Free app
-No fees
-No hassle in posting books
-Free and easy

•An easier way to find books for the current classes. No more hassle on printing papers and walking around the campus taping them on the billboards or walls. 
•No more wasting paper or time, just with a couple of clicks and you will be able to search, find, and contact the people that are selling the books.