While watching her Chinese immigrant son-in-law learn the English language, it became apparent to the author that prepositions are one of the most difficult concepts to comprehend. Therefore, The Dance of The Caterpillars was written as a fun way to teach prepositions. This exciting children's book contains twenty-two prepositions, one two-word multiple, and two three-word multiples. It is destined to become a valuable learning tool for children as well as English as a second language students. Dzongkha or Bhutanese is spoken by about 130,000 people in Bhutan, where it is the national language, and also in Nepal and India. It is a South Tibetic language closely related to Sikkimese, and to a number of other languages spoken in Bhutan, such as Chocangaca, Brokpa, Brokkat and Lakha. Dzongkha is written with the Tibetan alphabet, which was introduced by Thonmi Sambhota, however the main written language in Bhutan is Classical Tibetan, which differs as much from Dzongkha as French from Latin. There is also an official way of writing Dzongkha with the Latin alphabet known as Roman Dzongkha.