This book guides its readers through the interesting universe of mechanical puzzles. This work, as to its approach and content, is unique on the Hungarian book market.
 
The various groups of puzzles are discussed according to categories used in the related international literature. The most famous puzzles are described in detail along with a short story of their background. In many categories quite a few brand new puzzles are also covered, some of them introduced to the general public for the first time.
 
A comprehensive set of 1000 meticulously drawn illustrations makes it  easy to visualize the puzzles and at the same time provides assistance for handcrafting them.
 
A special chapter is dedicated to some exciting mathematical aspects of the puzzles. Another section provides clear and inspiring, step-by-step instructions to help readers make the puzzles at home.
 
The book features a considerable number of brainteasers of various levels of difficulty:  some are solvable within moments of reflection even by kids, others need hours and there are those where it seems impossible to know where to start. The book also discusses some fascinating problems with no solutions so far, presenting excellent topics for even scientific articles or university theses.
 
The book is not an academic work; it uses language that is easy to understand, and offers excellent intellectual entertainment and a challenge for all age groups.