Delve into the second lecture on derived deformation theory presented by Barbara Fantechi at the thematic meeting "Higher Structures in Geometry and Mathematical Physics" held at the Centre International de Rencontres Mathématiques in Marseille, France. Explore advanced mathematical concepts over the course of an hour as Fantechi builds upon the foundations laid in the previous lecture. Access this recording through CIRM's Audiovisual Mathematics Library, which offers enhanced features such as chapter markers, keywords, abstracts, bibliographies, and Mathematics Subject Classification. Utilize the multi-criteria search function to find related talks by author, title, tags, or mathematical area, and benefit from the ability to navigate to specific parts of the video using the provided markers.