Police have arrested three people and are seeking a fourth in connection with a series of textbook thefts from the library at Georgia Gwinnett College in Lawrenceville, Channel 2 Action News reports.

The four would take the books, use a black marker to cover the college stamp, and sell them to the Dorks Textbooks store off-campus, police said. An employee of the store became suspicious -- the worker was able to make out the word “college” on a doctored page -- and contacted police.

A campus police report contains a partial list of stolen texts with a total value of more than $1,700.

According to arrest warrants, at least one of the alleged thieves is a Georgia Gwinnett student -- Jonathon Cooper, Channel 2 reports. Police allegedly recovered some books in his dorm room.

Cooper and Brittnay O’Mealy were charged with theft by receiving, and Joshua Leverette with theft by taking and criminal trespass, Channel 2 reported. A fourth, unidentified suspect is being sought.

Police did not say how long the theft operation was going on but said their investigation was continuing.