My first job had domain-specific libraries on certain floors, primarily geoscience and reservoir engineering. About a year after I started, they decided to liquidate the libraries to make room for more offices, and we all got to grab a few books. I still have a copy of "Statistical Methods in Research & Production" with a call number tag on the spine and ARCO ALASKA INC., LIBRARY stamped across the edge of the pages. It was cool to have a library available at work, and realistically most of the petroleum engineering stuff isn't available online.