There are strong themes of family, being true to oneself, and making friends who might be different from you. I also loved the former shop owner turned cat! Definitely a winner, and one of the rare graphic novels with a character of color. Hooray!
Many young readers like to think that they could be witches or have magical powers, so this will be popular with fans of Vernon's Castle Hangnail, Mlynowski's Bras and Broomsticks, Hayter's The Witchy Worries of Abbie Adams and Nichol's The Apprentice Witch Series.