When the brothers' father comes home with a new toy that flies, the brothers get inspired to make it bigger and better. This book is funny but there's so much text that I feel like the target audience would easily be bored and it asks for more knowledge on the subject than it provides. The illustrations were well done, but they didn't necessarily seem to fit with the text. This concern could simply be because of strange marketing decisions, but it wasn't as enjoyable as it could have been.