Books as Monitor Stands?

At a computer on the second floor in Regenstein,  I noticed a book is placed under the base of the monitor to adjust the height. I wonder if the book is still part of the collection, and if so, it should be put back to the shelf.

Indeed, the book still forms part of the Library's collections, and readers of Geografía de la provincia de San Luis will be happy to know volume 2 is on its way back to the F's.

Readers: while the Suggestions Office appreciates the utility of the codex format (can your Kindle do this? We didn't think so!), we ask that patrons using books as monitor stands, mousepads, etc. kindly return them to the pickup shelves after use.