Some of my favourites (that I can remember) are:

from childhood -

A Wrinkle In Time
Ramona series
anything about the Saints
anything on Greek mythology
selected parts from the Bible
Judy Blume anything
Christopher Pike
V.C. Andrews
Nancy Drew series
Time travel series
Tuck Everlasting
Where the Red Fern Grows
Old Yeller

from adulthood -

anything by Noam Chomsky
Rush Limbaugh is a Big Fat Idiot
Michael Moore
David Sedaris - Naked, Barrel Fever
anything by Flannery O'Connor
Bridget Jones' diaries
White Teeth


I know there are more, just can't think of them all!