Jeff Gold’s book Sittin’ In: Jazz Clubs of the 1940s and 1950s is a visual history of many of the country’s most influential night clubs and ballrooms during jazz music’s golden era. Jerry Jazz Musician occasionally publishes a noteworthy excerpt from the book. In this edition, Gold writes about four Harlem jazz clubs – the Celebrity Club, Club Baron, Palm Cafe, and Club Sudan – and shares photographs and memorabilia from his collection.