This summer my 9 year old has been flying through graphic novels! I know there are many other children who love this format of books as well and so I wanted to compile a list of all of his favorites. I asked him to give me a star rating out of 5 each time he finished one and I am only including those he rated 4 or 5 stars. I have not read many of these so the recommendations are coming straight from him. Many of the titles are part of a series and I linked to the first book where you can then find the entire series.
I also included a list of shorter and simpler graphic novels that are great for younger kids. These are enjoyed by both my 6 year old daughter and my 9 year old son.
Disclaimer: Some of the featured books were sent to me for free from the publishers but the decision whether to include here is all my own. The book links contain affiliate links which means I receive a portion of your sale at no additional cost to you.

Shorter graphic novels for newly independent readers and above:
–Donut Feed the Squirrels (series)
–Owly (series)
–Magic Tree House (longer than the others on this list but accessible for younger readers)
–Doggo and Pupper (series, not exactly graphic novel but similar appeal)

Graphic novels geared towards about ages 8 and up
–The Hazardous Tales of Nathan Hale (series)
–Knights of the Lunch Table (series)
–Dragon Kingdom of Wrenly (series)
-White Bird (heads up for heavy topics, but it was one of my son’s highest rated choices)
–Diana: Princess of the Amazons
–Rapunzel’s Revenge and sequel Calamity Jack
–Goldilocks: Wanted Dead or Alive (connected to the Land of Stories series)
–Gustav and Henri (start of a series)
–Unsolved Case Files (series, not exactly graphic novel but similar appeal)