The Congruences of a Finite Lattice

Focusing on the study of congruence lattices, this text serves as a comprehensive introduction to the congruences of finite lattices, highlighting significant results from the past 90 years. Authored by a leading expert in lattice theory, it employs the unique "Proof-by-Picture" method, making complex concepts more accessible through visual representations. The book not only covers established findings but also addresses numerous open problems, making it a valuable resource for both students and researchers in the field.