The Real Book comes in 4 variations/keys:  C, Bb, Eb and Bass Clef
 
The Real Books are the best-selling jazz books of all time. Since the 1970s, musicians have trusted these volumes to get them through every gig, night after night. The problem is that the books were illegally produced and distributed, without any regard to copyright law, or royalties paid to the composers who created these musical masterpieces. Hal Leonard is very proud to present the first legitimate and legal editions of these books ever produced.