Books by Joshua Hornik

Mensa is the internationally renowned high IQ society which has a worldwide membership of almost 100,000 members in more than 100 countries. There are 28,000 members in the UK, including 2,200 Junior Mensans under the age of 16. To Join Mensa, the only requirement for membership is that an individual's IQ falls within the top 2 per cent of the population.