The book is a praiseworthy attempt, comprehensively covering the theoretical and practical aspects of plant viruses and diseases caused by them. It provides a thorough insight into the molecular aspects of the pathogenic behaviour of the plant viruses and their management. Viruses are (economically) very important for most food & commercial crops worldwide. Plant virology as a subject is being taught & researched very much in India due to colossal economic losses to many of the commercial crops.