"The Truth about Esperanto and Ido u003d The Truth about Esperanto and Ido" is a research book in which the author Anton Josef Witterik examines the history, essence and advantages of two language structures - Esperanto and Ido. The author examines the origin of these artificial languages, the arguments of their supporters and critics, as well as the influence of these languages on modern linguistics and international communication. This book is a valuable source of information for anyone interested in global language initiatives and wishing to better understand the essence of Esperanto and Ido."