I think its the star wars visional dictionary. Heres an amazon link to i think the same one. https://www.amazon.com/dp/0789434814/ref=cm_sw_r_cp_apa_i_6n7jFb9622C1D
I'm about 90% sure it first showed up in this book.
EDIT: Sorry, link was broken. Now fixed.
Provided an amazon link for those interested.
https://www.amazon.com/dp/0789434814/ref=cm_sw_r_awd_EpE8vbMFDKJ33
Visual Dictionary
All the Dorling Kindersly books are well worth a read.