I had a pleasure to give a series of invited talks about pattern formation and processing of biological information during development at the Workshop on Flags, Landscapes, Signaling: From gene regulatory dynamics to tissue patterning & morphogenesis, IMSc Chennai India, May 6-17, https://www.imsc.res.in/~sitabhra/meetings/wfls24/. The series included introduction, research and chalk-talk. The workshop was aimed for PhD students with physics and biology background. Lectures were followed up by informal discussions with many insightful comments.