The Congruences of a Finite Lattice

Focusing on the congruence lattices of finite lattices, this text serves as a comprehensive introduction to a significant area of lattice theory. It highlights major results from the last 90 years and addresses numerous open problems. The author, a leading expert in the field, employs a unique "Proof-by-Picture" method to present complex ideas visually, making formal proofs more accessible and intuitive. This approach enhances understanding and engagement with the subject matter, appealing to both newcomers and seasoned researchers in lattice theory.