Singapore has evolved from a developing country to a developed one, in only a few short decades. Its gross domestic product per capita has soared from just US$517 (S$697) in 1965, to US$64,582 (S$87,128) in 2018. Impressed, visiting university students from Mexico and the United States, in early 2019, asked the city state's Ambassador-at-Large Tommy Koh for its secret of success. His reply: there was not a single secret but many, which he would consider curating a new book on. The result: Fifty Secrets of Singapore's Success. The collection of 50 essays, written by leaders and experts in their fields, sheds light on how the small state has scored significant success in not only economics but also eight other areas. Among other things, Singapore is one of the world's least corrupt countries, has one of the highest home ownership rates worldwide — of more than 90 per cent — and has world-class schools, healthcare and environments. Singapore has also been a good global citizen. It has played a significant role in the development of the Association of Southeast Asian Nations (ASEAN). At the United Nations (UN), Singapore has played a leadership role in the negotiations of the UN Convention on the Law of the Sea, the UN Convention on International Settlement Agreements Resulting from Mediation (also known as the Singapore Convention on Mediation) and the Rio Declaration on Environment and Development.