This book presents the best short introduction to genius to be found. It is a valuable resource for all students of psychology and anyone interested in the field. The book examines the many definitions of “genius”, and the multiple domains in which it appears, including art, science, music, business, literature, and the media. The term genius is peculiar. It can be precisely defined or loosely defined. It can be applied to a diversity of phenomena or confined to just one or two. It all depends on how you use the term. The tremendous range in usage reflects the fact that genius is both a humanistic concept with a long history and a scientific concept with a much shorter history. There are two principal ways to assess degrees of genius. One is historiometric, and the other is psychometric. Whatever the actual association between historiometric and psychometric genius, we have a strong inclination to associate the two concepts. This connection was demonstrated in a recent survey of college students at both U.S. and Canadian universities. The book also examines three alternative positions on the nature of cognitive ability: unified intellect, diverse intellects and hierarchical intellect. Whether intelligence is unified or multiple, all budding geniuses must go through some sort of apprenticeship period in which they acquire the expertise that will enable them to make original and exemplary contributions to their chosen domain of achievement. The book further explains what psychologists have said about problem-solving research in cognitive psychology.