I
never really understood why children's books can be so successful with adults.
Look at the Harry Potter series that more adult readers has than readers from
the target group. And now there is “Problem solving 101”, by Ken Watanabe. A
book meant to teach children how to solve problems, but immensely popular with
their parents. It made me curious: why would such book be so popular with
adults? I think the simplicity in explaining how to reach a goal by solving
problems is liked by many people.