Today we continue our literary journey through the United State with our Top Books by State series. The next stop: Hawaii. Hawaii is one of very few states to have been a sovereign nation before statehood. While the U.S. had acknowledged Hawaii as an independent nation and had established treaties, the U.S. and European businessmen organized a coup to overthrow the Kamehameha monarchy. The U.S. government supported the coup, stating that military demonstrations in Hawaii and the queen's new constitution expanding her personal power were a threat to U.S. citizens; however, control of the sugar trade was a primary motivation. Hawaii existed as a republic until its incorporation into the United States in 1959. Since then, Hawaii has become a major tourist destination, sporting some of the most beautiful lands in the world. Home to many plants and animals unique to the islands, Hawaii is an important natural habitat and one ever changing and at risk from volcanoes and tourism-related expansions.