If you like Rules by Cynthia Lord
Here are some funny, cool books that you might also enjoy.
Millicent Min, Girl Genius by Lisa Yee.
In a series of hilarious journal entries, eleven-year-old child prodigy Millicent Min records her struggles to learn to play volleyball, tutor her enemy, deal with her grandmother's departure, and make friends over the course of a tumultuous summer.
Notes from a Liar and Her Dog by Gennifer Choldenko.
Eleven-year-old Ant, stuck in a family that she does not like, copes by pretending that her "real" parents are coming to rescue her, by loving her dog Pistachio, by volunteering at the zoo, and by bending the truth and telling lies.
The higher power of Lucky by Susan Patron.
Fearing that her legal guardian plans to abandon her to return to France, 10-year-old aspiring scientist Lucky Trimble determines to run away while also continuing to seek the Higher Power that will bring stability to her life.
Penny from heaven by Jennifer L. Holm.bm_rules
As she turns twelve during the summer of 1953, Penny gains new insights into herself and her family while also learning a secret about her father's death. Her Nonny cries every time her father's name is mentioned. And the two sides of her family aren't speaking to each other! It's a story about families--about the things that tear them apart and bring them together.