The names of the riverine wooden boats from the Brazilian Amazon are painted in a specific style with colorful and ornate lettering, with strong influences of 19th century decorative lettering. It is a knowledge that passes from father to son and continues until today. Over 15 years we have carried out research and educational activities with the participation of painters. In 2021, a book was published about the project and the knowledge of letter painters, which has been used for educational purposes, along with documentaries and workshops on this Brazilian intangible heritage.