Nancy and her friends are on an epic quest to discover the identity of a treacherous Greek scholar in this fifteenth book of the Nancy Drew Diaries, a fresh app

The Professor’s Puzzle is designed as a handbook for new and aspiring professors to help them transition from the independent research of their doctoral progr

These pleasantly perplexing highlights from the classic 1893 puzzle book abound in Victorian charm. They include both arithmetic problems and challenges involvi

The Professor Layton series couples brilliant puzzle games with a fascinating story to create a riveting formula that has provided great entertainment for myste