The ISBN of Happy to be Here is 0140131825.
The ISBN of Hero Happy Hour is 0557185793.
The ISBN of The Happy Isles of Oceania is 9780399137266.
The ISBN of What Am I Doing Here? is 0099769816.
The ISBN of The Schwa Was Here is 9780525471820.
The ISBN of Hope Was Here is 0142404241.
The ISBN of Ed the Happy Clown is 978-1-77046-075-1.
The ISBN of Here Come the Blobbies is 9781932179323.
The ISBN of Here Be Daemons is 0-7221-2499-6.
The ISBN of Here Lies Arthur is 978-0439955331.
The ISBN of Here Be Dragons is 0-03-062773-7.
The ISBN of Here Comes Civilization is 1-886778-28-0.
The ISBN of Here Comes Tomorrow is 0-7851-1345-2.