The ISBN of Programming the Universe is 978-1400040926.
The ISBN of The Catalogue of the Universe is 0007123388.
The ISBN of The Ambidextrous Universe is 0486442446.
The ISBN of Email to the Universe is 1561841943.
The ISBN of The Tao of Programming is 0-931137-07-1.
The ISBN of Programming Ruby is 0-97-451405-5.
The ISBN of Masters of the Universe - comics - is 0974800813.
The ISBN of The Art of Computer Programming is 0-201-03801-3.
The ISBN of Core Python Programming is 0-13-226993-7.
The ISBN of Programming Linux Games is 1-886411-49-2.
The ISBN of The Elegant Universe is 0-393-05858-1.
The ISBN of The Five Ages of the Universe is 978-0684865768.
The ISBN of Mastering the Universe is 1-578-60223-8.