Question

How do I do an authors purpose on the book diary of a wimpy kid Third Wheel. I don't understand please help

Answer 1

Why did the author write the book? Did the author write it to make people laugh, for example? Or did the author write it to entertain people?

Answer 2

Well the purpose of third wheel is that Greg and rowley are best friends and next thing you know he has a girl friend and that kind of puts a gap in the friendship but really what I trying to say is basically things don't go as planned