The Harrah’s Entertainment Corporate Archives (dating from 1811 to 2004 with the bulk of the materials dating from 1940 to 2000) contain the promotional and corporate files of Harrah’s Entertainment Inc. and its predecessors, as well as Bill Harrah’s personal papers and card game collection. The materials were compiled and developed as a corporate archive by Harrah's Entertainment, Inc.’s Corporate Communications Department. The collection is primarily comprised of casino and employee periodicals, reports, manuals, promotional files, ephemera, and newspaper articles that document Bill Harrah’s casinos in Reno, Nevada and Lake Tahoe as well as Harrah’s Inc., Holiday Inns, Inc., Holiday Corporation, the Promus Companies, and Harrah’s Entertainment, Inc. Also included are photographs that document the construction of Harrah’s properties, business operations, the people who worked and performed at Harrah’s properties, and Bill Harrah’s automobile collection. The collection also contains Bill Harrah’s collection of playing cards and card games. Also included are photographs of the Harrah family.

The Bill Willard Photograph Collection depicts Las Vegas, Nevada, hotels and casinos in Las Vegas, the Las Vegas Valley, and Laughlin, Nevada from 1905 to 1919 and from 1940 to 1999. The photographs primarily depict hotels and casinos in Las Vegas, including the Sahara Hotel, Circus Circus Hotel and Casino, MGM Grand Las Vegas Hotel and Casino, Caesars Palace, Flamingo Hotel, and the Aladdin Hotel. The photographs also depict students at Nevada Southern University (predecessor of the University of Nevada, Las Vegas), the city of Las Vegas, industrial plants in Henderson and Apex, Nevada, and events in Laughlin, Nevada.

This collection is comprised of publicity photographs of Howard Hughes and his aircrafts, from approximately the 1940s to the 1950s, that were compiled by David Rea, former pilot for Hughes Aircraft Company. This collection also includes clippings and technical drawings of Hughes aircrafts.

The North Las Vegas Bicentennial Committee Photographs and Drawings of Kiel Ranch document the buildings on Kiel (Kyle) Ranch in 1974. As part of the commemoration of the United States bicentennial, the North Las Vegas City Council elected to restore Kiel Ranch, which was one of the first non-indigenous settlements in the Las Vegas Valley. The materials include black-and-white photographs of Kiel Ranch as it was in 1974 as well as architectural drawings of planned renovations to the main house, the Brown House, the foreman's house, and the ranch hands' house.

The Florence Lee Jones Cahlan Photographs depict locations and events in Las Vegas, Nevada from 1909 to 1980. The photographs primarily depict historical locations, including the Las Vegas Mormon Fort, the Kiel Ranch, and plaques commemorating Las Vegas’s 75th anniversary. The photographs also depict celebrations, including the Diamond Jubilee festivities held to celebrate Las Vegas’s 75th anniversary, plaque dedications, building dedications, and the 50th anniversary of the arrival of the first mail planes in Las Vegas. The photographs include the Kennecott Copper Corporation’s facilities in McGill, Nevada, Western Airlines planes and pilots, and Union Pacific Railroad locomotives.

The Bob Weinstein Papers on Compulsive Gambling (1945-2024) contain pamphlets, brochures, conference packets, promotional material, correspondence, and ephemera related to Weinstein's involvement in Gamblers Anonymous (G.A.). The collection contains G.A. recovery resources, workshop and training booklets, and meeting minutes and correspondence from Weinstein's time on the G.A. International Board of Trustees. Also contained in the collection are copies of correspondence from Jim W. (founder of Gamblers Anonymous) to Bill W. (a founder of Alcoholics Anonymous) and many books and other publications related to compulsive gambling.