Myer-Briggs Type Indicator 

The Myers-Briggs Type Indicator® (MBTI®) instrument and the dozens of expert resources that have been designed to enhance its effectiveness offer a practical yet powerful set of tools for lifelong growth and development.

After more than 50 years, the MBTI instrument continues to be the most trusted and widely used assessment in the world for understanding individual differences and uncovering new ways to work and interact with others.

More than 2 million assessments are administered to individuals—including employees of many Fortune 500 companies—annually in the United States alone. The MBTI family of tools reaches across the globe in 16 languages to help improve individual and team performance, nurture and retain top talent, develop leadership at every level of an organisation, reduce workplace conflict, and explore the world of work. Begin with the MBTI Form M instrument, which identifies the four basic type preferences, or Form Q, which provides a more richly textured picture of type and behaviour.

More details can be found at the Myers Briggs website.