JP Imbert I started a diving career by chance, I found myself drafted at the French Navy Diving Department after some administrative errors. But there I computed my first decompression tables, designed for pig experiments, and discovered a vocation. A year later I finished my studies by Dr Lambertsen Institute at Philadelphia, during the Predicitive Study IV experiment. He gave me rabbits to expose to isobaric counter diffusion. I am sorry to admit that the rabbits died of heart attack during the pressurisation and my work remained inconclusive. With such a CV, it was then easy for me to join the famous Comex as a research engineer. For ten outstanding years, I followed deep experimental dives, from heliox to hydrogen breathing, until the last record dive to 701m in 1991. This gave me a good reason to participate to the deep Norwegian contracts of the 80’s and then transfer the knowledge to Brazil when serious deep operations started in 1990. In the mean time, I matured my decompression theories and issued the whole set of Comex tables and the French 1992 tables. 1995 was a bad year for the offshore industry in general and for myself in particular. I left Comex and started a new career with technical diving. Trained by Billy Deans, I soon became the French Licensee of IANTD. For 10 years, I enjoyed teaching trimix and rebreather diving, but kept decompression modelling as a hobby. Todays, I am back to the offshore industry, which is high in spirit because of the high oil prices and has a great need of diving experts. Working for Technip and other large commercial diving companies, I have written meters of shelves of diving manuals and advanced saturation procedures. With new data in hands and new scientific discoveries around, I am on the point to publish an ultimate decompression algorithm and edit revised tables for commercial diving.