Různé hry, testy a hlavolamy, které knížka popisuje, rozvíjejí tvořivé způsoby myšlení, pomáhají odhalit určité dimenze osobnosti, poodkrývají záhady lidské psychiky a způsobů jednání. Kromě moderních ověřených psychologických testů přináší knížka návody k četným společenským hrám, které podněcují k zamyšlení nad sebou a nad reakcemi přátel, i zajímavé hlavolamy.
Inheriting the mantle of revolutionary biologist from Darwin, Watson, and Crick, Richard Dawkins forced an enormous change in the way we see ourselves and the world with the publication of The Selfish Gene . Suppose, instead of thinking about organisms using genes to reproduce themselves, as we had since Mendel's work was rediscovered, we turn it around and imagine that "our" genes build and maintain us in order to make more genes. That simple reversal seems to answer many puzzlers which had stumped scientists for years, and we haven't thought of evolution in the same way since. Drawing fascinating examples from every field of biology, he paved the way for a serious re-evaluation of evolution. He also introduced the concept of self-reproducing ideas, or memes, which (seemingly) use humans exclusively for their propagation. If we are puppets, he says, at least we can try to understand our strings.