This book contains several studies in growth of adolescents. It discusses the growth of Javanese adolescents that differred from those of European descents adolescents, the growth of high social- economic status Cape-Coloured adolescents who experienced low peak of PHV (peak of height velocity), growth in the light of evolution, factors affecting growth, the difference between males and females in growth velocity, and comparation of the timing and magnitude of several PHVs reconstructed from published literatures. Generally boys experience the adolescent growth spurt two years later than girls. This study explores several methods such as cross sectional, mixed-longitudinal, and longitudinal studies. Is a growth spurt that has a high peak--such as those found in the growth velocity references from Western countries-- universally found in child growth patterns in every human population? Several possible explanations are explored by the author to elucidate the phenomena related to the variation of bodily growth of the adolescents.