The Institute for Personality Psychology develops and promotes Personality Psychology, a system introduced in 1997 that maps individual traits to 12 animal characters, further divided into 60 character types. Designed as an accessible, practical form of image-based psychology, the method draws on observations of people, nature, and human development, organized through statistical principles. The Institute aims to encourage people to recognize and respect individual differences and contribute to a less stressful society.

Its approach is presented as a tool for improving communication in business, personal relationships, and parenting. Services and offerings include lectures and courses, character-based diagnostics, online resources through Personality Psychology Cloud, and shopping. The Institute also provides animal-character content, text, and APIs for use by businesses and media. Its case studies describe applications across sectors including sports, education, healthcare, beauty, and customer service, where organizations use character insights to guide communication, instruction, and client interactions. Through these programs and partnerships, the Institute makes its personality framework available to individuals and organizations seeking practical ways to understand and work with different personalities.