This almanack serves as the definitive record of the 2023 rugby season, meticulously documenting key events and performances. Authored by seasoned rugby journalists Adrian Hill, Campbell Burnes, and Clive Akers, this 87th edition draws upon extensive match reports, statistics, and expert analysis to provide a comprehensive overview of the year in rugby. The book's primary argument is the enduring significance of rugby as a cultural and sporting force, particularly within New Zealand, as evidenced by its detailed coverage of both professional and grassroots competitions.

As the world's longest-running rugby book of record, the Rugby Almanack is a highly respected annual publication. Its consistent, uninterrupted publication since 1935, barring wartime combinations, attests to its enduring value and the demand for its detailed historical and statistical accounts. The extensive coverage of various leagues and tournaments, including international, professional, and regional competitions, positions it as an essential reference for rugby historians, statisticians, and dedicated fans.