My favorite childhood books are:
The Little House on the Praire Series
Chronicals of Narnia Series
The Boxcar Children Series
The Babysitters Club Series (admittedly these came out when I was in 6th grade, so I was a little old for them)
A Little Princess
Dr. Seuss, esp. Green Eggs and Ham, The Lorax and How the Grinch Stole Christmas
Judy Blume: Superfudge, Are You There God? It's Me, Margret..., Blubber, Iggie's House
The Amelia Bedelia books. They were so funny.
Lyle the Crocodile books.
Charlie and the Chocolate Factory. Never read this book on an empty stomach. Or have some really good chocolate on hand.
Sweet Valley High Series
Sweet 16 Series
About David (a really sad book about a teenage boy who commits suicide)