This book is a humorous account of life in a British boys' boarding school in the 1950s, told through the eyes of Nigel Molesworth, the self-proclaimed "goriller of 3B" and "curse of St. Custard's." Through a series of vignettes, sketches, and unique spelling, Molesworth offers a satirical take on school life, teachers (or "beaks"), and fellow students, including his "grate friend" Peason and his annoying younger brother, Molesworth 2. The text is complemented by distinctive illustrations that bring the chaotic and whimsical world of St. Custard's to life, capturing the essence of post-war British education with a blend of wit, nostalgia, and irreverence.

The 4155th greatest book of all time