Design RFID Reader

I want to design RFID Reader for my Library automation project.

I need one RFID reader module design for Check in Check out station and one reader module for dropbox system for only returning books.

please any one have idea regarding this?

Grab couple items here https://www.sparkfun.com/search/results?term=rfid and loosely follow along here https://shorturl.at/doKT3 (but substitute the sparkfun pin #'s in the code, etc) should get you pretty close