Jean-Jacques Felstein was born in 1948 and began his studies at Nanterre in 1968. He achieved a diploma in specialist education in 1976, followed by a degree in English and a diploma in languages and communication sciences. He worked in education for twenty-three years, before becoming the department head in a child protection unit at the Seine-Saint-Denis General Council. Here he acquired expert knowledge on concepts such as heritage, parentage, abuse, and incest. During these years, he practised music and played guitar in a hard rock group, performing in numerous concerts. He died in Paris in 2015, following a long illness.
