In 1978, he began working on the photo album
Two children on the way, which highlighted the first 20 years of the newspaper
Libération. Many of Hergo's photo albums dealt with youth, love, death, gender, cinema, art, and intimacy. In 1995, he became a resident of the
International City of the Arts, which allowed him to visit artist studios much more frequently. Hergo held a large amount of photographic expositions throughout his career. He died on 28 January 2020. ==Publications and collections==