What is the main conflict in The Adventures of Tom Sawyer?I have to make a poster with no words on it, but still describe the conflict with pictures.

I think you could look at the main conflict in two ways.

First, you could look at what the boys see as the main conflict.  If you look at it this way, the main conflict is between the boys and Injun Joe.  They spend much of the book worrying about Injun Joe taking his revenge on them.

A second way to look at it is more philosophical.  During the entire story, we see Tom in conflict with the rules of the adult world.  We see him cheat to win the Bible, cheat to get out of whitewashing the fence, etc.