Delve into the fourth lecture on The Chiral Lagrangian presented by Aneesh Manohar as part of the School for Advanced Topics in Particle Physics (SATPP) at the International Centre for Theoretical Sciences. Explore advanced concepts in Effective Field Theories (EFTs) during this 59-minute session, designed for postdoctoral fellows and advanced PhD students in theoretical particle physics. Gain insights into systematic approaches for describing physics at various scales using relevant degrees of freedom, essential for understanding phenomena from TeV scales to meson and baryon interactions. Participate in this comprehensive program that spans two weeks, focusing on both low and high energy EFTs, and benefit from the expertise of leading researchers in the field.