François VI, Duc de La Rochefoucauld, Prince de Marcillac was a noted French author of maxims and memoirs. It is said that his world-view was clear-eyed and urbane, and that he neither condemned human conduct nor sentimentally celebrated it. source
A travel book is about someone who goes somewhere travels on the ground sees something and spends quite a lot of time doing it and has a hard time and then comes back and writes about it. It's not about inventing.