Frommer's is a travel guidebook series and one of the bestselling travel guides in America. The series began in 1957 with the publication of Arthur Frommer's book, Europe on $5 a Day. Frommer's has expanded to include over 350 guidebooks across 14 series, as well as other media including the award winning Frommers.com website which covers over 3,500 destinations. In 2007, Frommer's celebrated its 50th anniversary of guidebook publishing. Since May 2007, Arthur Frommer has been actively blogging about travel on the Frommers.com website.

In 1957, Arthur Frommer, a young corporal in the U.S. Army, wrote a travel guide for American GIs in Europe, and then produced a civilian version called Europe on $5 a Day. The book ranked popular landmarks and sights in order of importance and included suggestions on how to travel around Europe on a budget. It was the first travel guide to show Americans that they could afford to travel in Europe. Arthur Frommer returned to the United States and began practicing law. During that time, he continued to write and also began to self-publish guidebooks to additional destinations, including New York, Mexico, Hawaii, Japan and the Caribbean. In 1977, Frommer’s trademark was sold to Simon & Schuster, Inc. Pearson bought the reference division of Simon & Schuster in 1998 and sold it to IDG Books in 1999. John Wiley & Sons acquired IDG Books (renamed Hungry Minds) in 2001. Arthur’s daughter, Pauline Frommer, is now writing her own series of travel guidebooks and continuing the Frommer’s travel legacy.