Curiosity is a quality related to inquisitive thinking and is a desire to acquire knowledge and skill. Optical illusions intensify this desire for knowledge as it is something that deceives the eye by appearing to be other than it is. Curious? is a box of illusions that plays on your curiosity and deceives the eye to leave you searching for these visible or invisible tricks. The hidden words in these books are asking the question as to whether you have been curious  with these illusions or just had fun  inspecting them. My work involves different types of books that are illusions themselves from tunnel books to concertina books that come as a set to explore. So, are you Curious?