Ellis Oswalt Ellis Oswalt New Yorker Ellis Oswalt, author of the book Tesla's Words, visited Serbia in September 2022 with the aim of promoting his book and getting to know the people and organisations dealing with the character and work of Nikola Tesla. Collaboration with Ellis Oswalt We established cooperation with Ellis Oswalt with the idea of exchanging experiences and improving relations between Serbs and Americans through Tesla's character and works, which is one of the important activities of the "Petar Mandic" Endowment. The book promotion of Tesla's Words was held on 26th September 2021 at the Ada Mall in Belgrade, organised by Tesla Science Foundation from Philadelphia. The founder of the "Petar Mandic" Endowment, father Oliver Subotic, with whom Ellis Oswalt is on friendly terms, took part in the promotion. Nikola Loncar, President of the Tesla Science Foundation from Philadelphia, who invited Ellis Oswalt to Serbia, also spoke about the book Tesla's Words. You can read about the promotion of the book Tesla's Words in the online article of the Politika newspaper, while you can find out about the activities of this researcher of the character and work of Nikola Tesla by visiting his Instagram account.