The main lesson from The Wednesday Wars, a coming-of-age story about tranformation, revolves around finding friendship, love, and an expression of one's selfhood. The Wednesday wars are between Mrs. Baker and Holling. She is disciplining him and tutoring him, but soon they begin to mutually help each other and form a friendship that straddles the age and authority differences.
As Holling goes through his transformation, starting out as a isolated boy in middle school then becoming a boy with confident self-expression in middle school, he reaches out to rescue his sisiter, thereby putting an end to thier war against each other; he learns from Shakespeare important lessons on life and being, thereby putting an end to his war against lessons; and he is mentored and encouraged by the person responsible for his Wednesday wars, thereby putting an end to his war against Mrs. Baker.
In the end, Holling learns about and acquires friends as well as learning about and expressing love. He even has a romance of own with Meryl Lee. Moreover, Holling learns to express talents and intellectual abilities he finds within himself.
Holling was able to stand up to his dad, and finally tell his dad that he doesn't want to be like his dad, but to be who he truly is.