It is convenient to observe the youth group of the Brinta Tournament of 1963/1964, because it would be the start of forthcoming world champions. I was the youth champion of The Netherlands and I also participated in this event. Ton Sijbrands won the tournament with 16 points and had only two draws. I lost to Harm Wiersma and Ton Sijbrands, which was enough for me to tell the whole world that these two players would be future world champions. Ton Sijbrands accomplished this feat in 1972 and 1973. However, the achievements of International Grandmaster Harm Wiersma are better still. He was six times world champion in the years 1976, 1977, 1979, 1981, and 1983- 1984. On the other hand he was Europe's champion in 1999 before Ton Sijbrands! I recommend this book to psycologists and all professionals who work with children as a source of knowledge and a challenge to think in new concepts.