Help!  We Need a Title!  by Henré Tullet.  Nothing's betta than a little meta.  An author climbs inside his own story to make peace with his characters and give them something exciting to do.  While this character-in-a-book awareness stunt has been done in various iterations in children's literature before (Henrik Drescher's unfairly out-of-print Simon's Book being one example, Mo Willems' We Are In a Book! and Mordecai Gerstein's A Book more recent explorations on the theme)  and my favorite writing-process-book-for-kids remains Mary Jane Auch's The Plot Chickens, naturally the author of Press Here has his own fun and cunning spin on things; expressive photos of the author himself pasted inside the book makes this a little fresh and lively lines are kid-friendly and worth a look.  Link for information; please support your local independent bookseller.