One of my favorite single-volume graphic novels EVER. Derring-do! Cuteness! Non-obnoxious life lessons! Complex but loveable characters! Also there is backstory! And probably anyone from ages 8 to 99 could enjoy it.
Nikolski, by Nicolas Dickner
Another "how did I never read this" Quebecois novel (read in French, so I don't know if the translation to English is any good). I loved many parts of it. Occasionally it dragged or didn't make enough sense or felt too fractured, but for the most part it was human and warm and introspective and imaginative and altogether lovely. Also, occasionally, hilarious.
SuperMutant Magic Academy, by Jillian Tamaki
Really bizarre, surreal, sometimes vulgar, and ultimately deeply affecting comic strips.
Tacky the Penguin, by Helen Lester
Adorably illustrated and frequently amusing story about the value of nonconformity. The sort of didacticism I dig.
Oh, No!, by Candace Fleming, illustrated by Eric Rohmann
The story for this one was just okay, but the pictures were SO pretty that I went out and found a bunch more picture books with the same illustrator to read.