This is not a revision but rather an attempt to find information about the author, Amparo María Suárez Antturi. The last name Antturi has a distinct ortography (-ntt-) and, according to my knowledge, is unknown anywhere else in the world except here in Finland. So far, I have been unable to find any other facts about Suarez Antturi except this one book. Please, if you have any suggestions as to where to look, I would be extremely grateful. Yours, Arto Antturi, aantturi (at) gmail.com.