The original release of this album in the summer of 1967 was a landmark moment in the Byrds history. After four highly acclaimed albums and a wealth of singles, the group could look back on a career in which they had rewritten the book of contemporary American music. Every time the Byrds released a new record they seemed to coin a fresh musical adjective. After folk rock, jazz rock and raga rock, they were labeled "space rock," having introduced science fiction and new age themes into songs like "Mr. Spaceman" and "5-D." Even while pushing forward towards their most musically experimental period, they were feeling the burden of their own history. Both "So You Want To Be A Rock N' Roll Star" and "My Back Pages" saw them looking back a little sardonically at all they had achieved. Their classic first era was punctuated by the release of this compilation.