Growing up in the late 70's and early 80's, I had this "photobook" of alien worlds. It was basically a collection of artwork with a short description of each world. It was a hardcover, but probably was less than 25 pages long.
I only remember one of the pictures was of an abandoned world. The rest were thriving alien civilizations. I'm sure there was some overarching premise to tie everything together, but I don't really remember what it was.
The style was definitely more modern than most of the scifi artwork I had back then. Therefor I believe the book was published sometime in the 1970's or early 1980's.