Penguin Books design

A brilliant pool of photos at Flickr
As David Pearson who uploaded the photos says:

"I photographed the journal as part of my research for ‘Penguin by Design’. It currently resides in the Bristol University Archive (Special Collections). I certainly wouldn’t want to be responsible for it!"
Thanx to 'Boing Boing'
Jan Tschichold at Penguin Books (PDF)
Here