This podcast episode delves into the history of "Real Books" in jazz, unauthorized collections of tunes that helped musicians navigate gigs. From their humble beginnings as Toondex card catalogs to the groundbreaking Real Book, which standardized harmonies and became a jazz education cornerstone, these books have played a vital role. While the Real Book has faced legal challenges and raised authenticity concerns, it remains an indispensable learning tool, emphasizing the importance of musicians developing their interpretations and engaging with the culture of jazz.