The Great Poster Trip – Art Eureka – Hardbound Edition. Here is the original old testament to rock poster art. Published in 1968 by Coyne & Blanchard of Palo Alto, California, The Great Poster Trip: Art Eureka is the first publication solely dedicated to 1960’s psychedelic poster art. It is a must-have for any collector. The book is 79 pages & features over 200 images, 30 of which are in full color & many in full-page size. Measures 9 x 11.5 inches.