The second item our ToughPig pals found out about it is "Jim Henson and Philosophy: Imagination and the Magic of Mayhem."
The book is an academic anthology book similar to 2009's Kermit Culture and 2013's The Wider Worlds of Jim Henson.
The publishers description cites:
Jim Henson’s creations have inspired generations with characters that are among the world’s most recognizable cultural icons. From Kermit the Frog, Miss Piggy and their Muppet friends, to the legendary Sesame Street and the Children’s Television Workshop, Henson has immeasurably impacted the growth, development and substance of children’s educational entertainment. Combining live-action and puppeteering into fantastical narratives like The Dark Crystal andLabyrinth, and the whimsical Fraggle Rock and The Storyteller, Henson transforms imagination into reality, weaving powerful philosophical messages on identity, community, diversity, love, death, and friendship. Henson’s legacy endures because he never shied away from exploring deep questions, nor underestimated the ability of children (or adults) to grapple with profound philosophical questions. Anyone who grew up with his stories, or has fallen in love with his characters, will enjoy this book’s exploration of the entertaining, educational and profound world of Jim Henson.
The book of essays will be released in paperback July 15, 2015. It's now available to pre-order through Amazon.