Some of the more popular ones for the kinder around that age around here(varies of course, check yourself)...

Series:
Fablehaven
Pendragon (the D.J. MacHale one, not the classic.)
Eric Rex
Book of Magics (real like/hate dichotomy there for kids)
Young Wizards (more popular with girls than boys here though)
Redwall (everyone likes fighting mice!)
The Librarian (Little Boy Lost is the first book but popular. Not sure how a non-reader will enjoy it though. Still, right now the first one is free so you can make a quick judgement.)

Comics:
Mouse Guard
Bone