Jay vs The Saxophone of Doom is Kara Kootstra's second book. Unlike her first book The Boy in Number Four which was a picture book for young children, Jay vs The Saxophone of Doom is a chapter book for kids ages 8 to 12. However both books do share some things in common like hockey, working hard to achieve goals and Mr. Bobby Orr. Kara also visits schools and speaks with the students about using their creativity, finding their "voice" and not being afraid to share it with others. Something else these two books share, Jay and Bobby Orr both have passion for what they do and I think Kara shares that with them as well.