The product is a complete set of 12 jazz albums recorded in 1956 by various artists under the "Encyclopedia of Jazz" release title. The records are on the RCA Victor label, with a speed of 33 RPM and made of vinyl. This collector's edition LPs come in a cardboard sleeve and have original covers. The albums feature jazz music from the 1950s, with English language lyrics, and are a valuable addition to any jazz enthusiast's collection.