Improve Your IQ jellemzők

We all have an IQ, but rarely use it to its full potential.
Improve Your IQ is a mind-stretching and entertaining puzzle book that will test your mental abilities to the limit.
Your will find that logic, concentration, and lateral thinking must all be called upon to solve each puzzle. Set in 20 levels of ascending difficulty, you can assess your progress in the art of problem-solving, sharpening your wits at every stage.
Hours of challenging fun lie ahead with this book, so good luck!