Other than Meet George Gershwin At The Keyboard, this is not a collection of special piano arrangements by Gershwin of his songs. What you get is the exact piano accompaniment of the published songs, but without the vocals and the lyrics, and without the music of the introductory verses. If you want the published songs, buy any volume that has the complete versions. If you want piano solos, buy "Meet George Gershwin at the keyboard", or play from a songbook. It's completely mystifying why this book should have been put together.