Diary

Greg's diary is the biggest job in the series. Without it, there would be no way to to know what happens in his life. So far there have been 7 of them. The first one is red, second is blue, 3rd is green, 4th is yellow, 5th is purple, and 6th is icy blue, 7 is brown, and 8 may be atomic tangerine. All of them say DIARY on the cover.