<i>’A major work: this book provides a comprehensive picture of the international legal challenges of natural heritage conservation. Truly an indispensable tool for policy-makers, experts and students. The book offers a complete guide to the complex world of treaties that regulate conservation at the global scale.’</i>

- Francesco Bandarin, UNESCO Assistant Director-General for Culture,

<i>This book is written by a prominent and influential scholar who also has the benefit of first hand knowledge of practical working of environmental regimes, having participated in several important negotiations. Gillespie's monograph therefore stands out among other publications on the subject of conservation, combining thoughtful and scholarly approach to issues raised with un-parallel insights into the working of environmental law and the conservation of biodiversity. The book is very original in its presentation of this subject, especially in the selection of topics and the approach which is not only legal but also scientific, philosophical and political. This book is evidence of the great erudition of the author not only in the field of conservation but also in international environmental law and general international law, an example of which can be his analysis of the precautionary principle, trade and a very complex issue of the exception for indigenous peoples and science. Mention also must be made of his detailed approach to various multilateral treaty regimes such as Ramsar Convention and the World Heritage Convention. Gillespie wrote an exceptional book which is a must for international layers, both practitioners and scholars. It is a thought-provoking, very well researched and original monograph, which due to its all- encompassing approach will retain its importance for a very long period of time.’</i>

- Malgosia Fitzmaurice, Queen Mary, University of London, UK,

<i>The book is an important contribution to environmental literature and specifically to environmental law internationally. International lawyers, both practitioners and academic lawyers alike - as well as policymakers - will welcome this thorough, scholarly and readable monograph as a must-have addition to their libraries.’</i>

- Phillip Taylor MBE and Elizabeth Taylor, The Barrister Magazine,