NLP, or Neuro-Linguistic Programming, emerged in the 1970s at the University of California. Drs. Richard Bandler and John Grinder began investigating how certain therapists achieved exceptional results. They sought to understand what set these therapists apart and contributed to their excellence.

Their research quickly evolved, leading to the publication of the first two volumes of the foundational NLP textbooks, Patterns of the Hypnotic Techniques of Milton H. Erickson, Volumes One and Two, in 1975 and 1977. Milton Erickson, a pioneer of clinical hypnotherapy, is regarded as a key figure in the field.

Throughout the 1970s, NLP gained popularity, with additional works by Bandler, Grinder, and their development team being released.

In 1980, however, Bandler and Grinder parted ways, which led to nearly two decades of legal disputes and copyright challenges. This period saw distortions and fragmentation of NLP theories, raising questions about its credibility and effectiveness.

Fortunately, Grinder continued his work during the legal proceedings. When the issues were finally resolved in 2000, both Bandler and Grinder reached an agreement on the ownership and presentation of NLP. This collaboration has sparked a revival of the theory in its authentic form, incorporating enhancements and modifications from its original creators. Additionally, regulatory and certification bodies have been established to address the credibility concerns that arose in the 1990s.