1. The Essential Calvin and Hobbes (1988) - a collection of early strips
2. Calvin and Hobbes (1989) - a collection of strips from 1985 to 1987
3. Something Under the Bed is Drooling (1990) - a collection of strips from 1988
4. There's Treasure Everywhere (1991) - a collection of strips from 1989
5. The Days Are Just Packed (1992) - a collection of strips from 1990
6. Attack of the Deranged Mutant Killer Monster Snow Goons (1993) - a collection of strips from 1991
7. Welcome to the Jungle (1994) - a collection of strips from 1992
8. The Revenge of the Baby-Sitters (1995) - a collection of strips from 1993
9. The Authoritative Calvin and Hobbes (1996) - a comprehensive collection of all strips, including many that were not previously published in book form
10. The Calvin and Hobbes Tenth Anniversary Book (1997) - a collection of strips from 1996
These are the official books published by Andrews McMeel Universal, which are the most widely available. There are also several unofficial or out-of-print books available, but these are generally less common.