Anne is in an attic with seven other people in Amsterdam waiting and surviving until the war is over and he jews are out of the concentration camps. They have different situations, Charley is bullied for not being a normal smart person and gets fired from his job for it, so he goes to a lad to get work on his brain so he can be smart, but when he gets it, it starts to go away and goes crazy and might turn back to being dumb. Anne is a jew, and the jews in her time period are worthless and mean nothing to the world. They're sent to camps to be worked or beat to death until they get to the death camp Auschwitz. So Anne and the 7 other people with her have to eat little and do everything quiet or they will be caught and be sent to the camps. The stories start at different parts. Charlie's story starts at the lab where he is going to get worked on. Anne's story starts at a flashback when Miep finds Anne's diary and Mr.Frank starts to read it because Anne wrote everything down in her book, and that's how we know everything that happened up in the attic.
There are some things about them, like when Charley and Anne might die, Anne is in a attic and might get caught and taken to the death camp and die. Charley just got his brain worked on so know he is smart, but when it starts to wear off he doesn't feel good and needs to sleep but he can't. Another reason they are the same is that when Charlie learns are sees something he didn't know or saw something interesting he would write it down in book, it was like jornal. When Anna wanted