I suppose everybody (or almost everybody) would find this useful as a starting point, but very soon its limitations become apparent. The number of species listed in this edition is just over 500, which is about about half of the total number of species to be found in the Indian subcontinent. That said, the illustrations are generally of a high standard and the accompanying text is detailed and useful. Overall, a good first buy but will need to be supplemented by another, more comprehensive guide for the serious birder.