The ISBN of The Kaiser's Last Kiss is 978-0007124473.
The ISBN of Kiss the Girls is 0316693707.
The ISBN of Dangerous Kiss is 978-0061012358.
The ISBN of The Exile Kiss is 0-385-41423-4.
The ISBN of Spider Kiss is 0-441-77793-7.
The ISBN of A Kiss of Shadows is 0-345-42339-9.
The ISBN for "Black Kiss" by Anna Hecker is 978-0-0624-2173-6.
The ISBN of Shadow Kiss is 978-1-59514-197-2.
The ISBN of The Last Olympian is 9781423101475.
The ISBN of The Last of the Nuba is 0312136420.
The ISBN of The Last Boleyn is 0307237907.
The ISBN of The Last Mafioso is 0812909550.
The ISBN of The Last Wizard is 0330356003.