On vacation at the beach this week and read the top two books about the group YES today...........neither are lengthy.

I read on another thread that the two best books were from Dan Hedges and Tim Morse.

Hedges was the media man for the group from 1968 until 1980............this book is the so-called "authorized" bio.

It ends in 1980 and does not cover any of the material or the personnel afterward.

The Morse book is cool in that he brings up a subject and the band members respond individually with memories in a couple of paragraphs............unique format.
For example.......... the topic is "To Be Over" and each band member will say what they remember about creating or playing the song.

Both books highly recommended for yes fans.