Forward the Foundation has 464 pages.
The Foundation Pit has 141 pages.
Second Foundation has 210 pages.
Foundation's Edge has 367 pages.
Foundation - novel - has 255 pages.
Foundation's Triumph has 400 pages.
Prelude to Foundation by Isaac Asimov has approximately 464 pages.
How Firm a Foundation - novel - has 608 pages.
"Face Forward" by Kevyn Aucoin has 175 pages.
Foundation - b-boy book - has 176 pages.
Stuck in Fast Forward has 227 pages.
Looking Forward - anthology - has 400 pages.
Foundation's Fear is by Gregory Benford. It has 624 pages in the mass market paperback. The school and library binding version has 616. It is a continuation of Isaac Asimov's Foundation series.