Explore the second lecture on "The Amplitude Approach to EFTs" delivered by Alejandro Pomarol Clotet as part of the School for Advanced Topics in Particle Physics (SATPP) at the International Centre for Theoretical Sciences. Delve into advanced concepts of Effective Field Theories (EFTs) and their application in particle physics. Gain insights into systematic methods for describing physics at different scales using relevant degrees of freedom. Suitable for postdoctoral fellows and advanced PhD students with a strong background in quantum field theory and the Standard Model of particle physics, this lecture contributes to a comprehensive two-week program covering both low and high energy EFTs. Enhance your understanding of this essential tool for exploring the universe from TeV scales to meson and baryon observables.