This book meticulously documents the results of British parliamentary by-elections from 1833 to 1987. It serves as a comprehensive reference for political historians, researchers, and anyone interested in the detailed electoral history of the United Kingdom during this extensive period. The work compiles data that allows for the analysis of shifts in political power and public sentiment over more than a century.

This reference work is recognized for its exhaustive compilation of by-election data, making it an invaluable resource for serious political historians and researchers. Its detailed approach provides a solid foundation for understanding electoral trends and the dynamics of British parliamentary politics over a significant historical span. The book's strength lies in its comprehensive and precise cataloging of electoral events.