Junie B. Jones series 1 through 9 by Barbara Park.  Illustrated by Denise Brunkus.  For ages 6-9 (grade 1-4)

1. Junie B. Jones and the Stupid Smelly Bus
2. Junie B. Jones and a Little Monkey Business
3. Junie B. Jones and Her Big Fat Mouth
4. Junie B. Jones and Some Sneaky Peeky Spying
5. Junie B. Jones and the Yucky Blucky Fruitcake
6. Junie B. Jones and That Meanie Jim's Birthday
7. Junie B. Jones Loves Handsome Warren
8. Junie B. Jones Has a Monster Under Her Bed
9. Junie B. Jones is Not a Crook