Chester's Way by Kevin Henkes

There is only one way for Chester to do things—his own way. “You definitely have a mind of your own,” said Chester’s mother. “That’s one way to put it,” said Chester’s father.

Luckily Chester’s best friend, Wilson, likes doing things just the same way as Chester. When they cut their sandwiches, it's always diagonally. When they ride their bikes, they always use hand signals. If Chester is hungry, Wilson is too. They're two of a kind—until indomitable Lilly, who has her own way of doing things, moves into the neighborhood. Because Lilly has her own way of doing things!