Josep Maria Font; Ramón Jansana (1996). A general algebraic semantics for sentential logics. Springer-Verlag. ISBN9783540616993. (2nd published by ASL in 2009) open access at Project Euclid
W.J. Blok; Don Pigozzi (1989). Algebraizable logics. American Mathematical Society. ISBN0821824597.
Janusz Czelakowski (2001). Protoalgebraic logics. Springer. ISBN9780792369400.
J. Michael Dunn; Gary M. Hardegree (2001). Algebraic methods in philosophical logic. Oxford University Press. ISBN9780198531920. Good introduction for readers with prior exposure to non-classical logics but without much background in order theory and/or universal algebra; the book covers these prerequisites at length. The book, however, has been criticized for poor and sometimes incorrect presentation of abstract algebraic logic results. [1]