The ISBN of The Last Wizard is 0330356003.
The ISBN of Wizard of the Pigeons is 0441894674.
The ISBN of Wizard's Hall is 0152981322.
The ISBN of A Wizard of Mars is 978-0152047702.
The ISBN of Dog Wizard is 978-0345377142.
The ISBN of The Wizard of London is 0-7564-0174-7.
The ISBN of Wizard's Holiday is 0-15-205207-0.
The ISBN of Wizard of the Crow is 1-84655-034-3.
The ISBN of The Wizard's Dilemma is 0-15-202460-3.
The ISBN of Wizard at Large is 0-345-36227-6.
The ISBN of Grey Star the Wizard is 0-099-44770-3.
The ISBN of Wizard's First Rule is 0-312-85705-5.
The ISBN of The Making of The Wizard of Oz is 0-7868-8352-9.