This book investigates the phenomenon of Unidentified Flying Objects (UFOs) and their reported sightings throughout 1991, compiling a comprehensive report on the subject. Timothy Good, a renowned UFO researcher and author, presents a detailed analysis of documented cases, witness testimonies, and potential explanations for these aerial anomalies. The work aims to collate and present evidence, encouraging a critical examination of the available data and the implications of UFO phenomena.

Timothy Good's 'The UFO Report 1991' is recognized within ufology circles as a significant annual compilation, offering a detailed overview of reported aerial phenomena for that specific year. The book is valued for its systematic collection of sightings and its analytical approach to the evidence, contributing to the ongoing discourse on UFOs. It serves as a reference point for researchers and enthusiasts interested in the historical documentation of the subject.