Autour des néo-impressionnistes, le groupe de Lagny explores the artistic milieu surrounding the Neo‑Impressionist movement in late 19th‑century France. Through a detailed examination of exhibitions, key figures, and stylistic innovations, the book illuminates how the Lagny group contributed to the broader development of pointillism and divisionism. Drawing on primary sources and contemporary critiques, it offers readers a nuanced perspective on the interplay between technique, theory, and the social context that shaped this pivotal moment in art history.