he is the author of the book "saved by grace", published in 2003 in three main languages: english, portuguese, and spanish. later the same book was translated into korean, romanian, ukrainian, chinese and shilube, a local language in the democratic republic of congo. in the beginning of 2012 two other books by the same author were published in portuguese language: "a ciencia da salvacao" (the science of salvation) and "conflito e vitoria" (conflict and victory).