During the Great Depression of the 1930s thousands of writers were hired by the Works Project Administration to create hundreds of guidebooks on all of the states in the U.S. These volumes that were produced became known as the American Guide Series. This series has been described as the biggest, fastest and most original research job in the history of the world. No library collection in Kentucky would be complete without a copy of Kentucky: A Guide To The Bluegrass State.

"Mammoth Cave was under private ownership before it became a National Park in 1941. For over 85 years, the cave was owned and operated by John Croghan of Locust Grove and his heirs. This is the first comprehensive look into the history of the Mammoth Cave Estate using unpublished information and rarely seen photographs of the Cave Estate from private collections. Maps, drawings, and floor plans of the Hotel and Estate are provided as well as never before seen images of the 1916 Mammoth Cave Hotel Fire aftermath"--