Boy by Roald Dahl

I'm reading the book "Boy" , written by Roald Dahl. I haven't read so much of the book so I don't know so much about it.

Roald father and sister died just a few mounth after eachother .
His mother and all the children moved to England so Roald could go in a boarding school there. His mother used to take all the children to Norway, wich is the parents' home country.
"Boy" is about Roald and his memories from his childhood. "Some har funny and some are paintful" said Roald Dahl.