Happy, sad, mad, and glad! / created by Britt Allcroft, based on The Railway Series by the Reverend W. Awdry.

Enhanced descriptions from Syndetics:

Watch Thomas the Tank Engine's facial expression change from happy to sad to mad to scared with this board book featuring a 3D lenticular cover and inset! Thomas's face LITERALLY moves on the cover and throughout the pages to match the action of the story.

Is Thomas happy, scared, sad, or mad? Train-loving boys and girls can discover how Thomas the Tank Engine is feeling in this Thomas & Friends board book that features a huge lenticular 3D inset that when tilted, changes Thomas's emotion. This interactive book is the perfect gift for Thomas & Friends fans ages 0 to 3!

In the early 1940s, a loving father crafted a small blue wooden train engine for his son, Christopher. The stories that this father, the Reverend W Awdry, made up to accompany the wonderful toy were first published in 1945 and became the basis for the Railway Series, a collection of books about Thomas the Tank Engine and his friends--and the rest is history. Thomas & Friends(TM) are now a big extended family of engines and others on the Island of Sodor. They appear not only in books but also in television shows and movies, and as a wide variety of beautifully made toys. The adventures of Thomas and his friends, which are always, ultimately, about friendship, have delighted generations of train-loving boys and girls for more than 70 years and will continue to do so for generations to come.