The book "La Relación" was written by Álvar Núñez Cabeza de Vaca, a Spanish explorer. It is considered the first book about Texas. If you want to find this kind of information, the best way is to search on the internet using a search engine like Google. Type in the keywords "La Relación author" or "first book about Texas" and you will most likely find reliable sources that can provide you with the information you're looking for. It's important to verify the credibility of the sources you find before considering the information as accurate.
