A Course in Universal Algebra: The Millennium Edition

First we would like to express gratitude to our colleagues who have added so much vitality to the subject of Universal Algebra during the past twenty years. One of the original reasons for writing this book was to make readily available the beautiful work on sheaves and discriminator varieties which we had learned from, and later developed with H. Werner. Recent work of, and with, R. McKenzie on structure and decidability theory has added to our excitement, and conviction, concerning the directions emphasized in this book.
In the late stages of polishing the manuscript we received valuable suggestions from M. Valeriote, W. Taylor, and the reviewer for Springer-Verlag. For help in proof-reading we also thank A. Adamson, M. Albert, D. Higgs, H. Kommel, G. Krishnan, and H. Riedel. A great deal of credit for the existence of the final product goes to Sandy Tamowski whose enthusiastic typing has been a constant inspiration.