[en] This article reviews a book which summarizes and classifies more than 1250 references to experimental work with low-level radiation between 1898 and 1977; explains that the detailed material is presented in tabular form with type of radiation as the primary classification and type of organism and date of report as subclassifications; notes that an incredible variety of effects are specified for flora and fauna; praises the summaries of background radiation and of overall radiation-dose effects to a variety of organisms; and emphasizes the importance of information dealing with the public perception of radiation and its effects