Clyde Robert Bulla, author of The Chalk Box Kid and many other novels for children, died on May 23rd at age 93.
I think this quote from his obituary article sums up his approach to writing for children:
“I’m reaching children at very impressionable age levels — third to
sixth grade, 8 to 11 years old,” Bulla told The Times’ Charles
Hillinger in 1973. “I have to be very careful what I write about.”