Books and Journals This item is located in the Engineering Library, which is in W2001 Lafferre Hall. The easiest way to gain access to the Engineering Library is to enter Lafferre hall from the Sixth Street entrance and take the grand staircase or the elevator to the 2nd floor. There are some 30,000 books and a few journal volumes in ELTC. Most of the engineering collection is online or stored off-site in the UM Library Depository.