"Nervous States: Democracy and the Decline of Reason" is a book about an intriguing exploration of the current political climate and the shifting role of reason in democratic societies.  The book delves into the rise of emotions, anxieties and social media, which highlights their impact on political decision-making and public discourse.  It prompts readers to critically examine the changing landscape of democracy in modern world.

The book provides a comprehensive and interdisciplinary analysis on the growing influence of fear, anger, and anxiety in political decision-making processes.  It delves into a wide array of topics, such as the rise of populism, the influence of social media, and the manipulation of public opinion through targeted messaging, etc.  The book argues that this emotional state of society has led to a decline in reason and an erosion of the democratic process.  The author also draws from various fields, including political science, philosophy, and psychology, to support his arguments.  This multidisciplinary approach adds depth and credibility to his assessments, making the book more convincing and thought-provoking.  Moreover, the book is easy to read and the author has skillfully balanced rigor academic with engaging prose, ensuring that readers from different backgrounds can engage with the materials. 

To sum up, "Nervous States: Democracy and the Decline of Reason" is a well-researched book that sheds light on the challenges facing democratic societies today.  It dissects the rise of emotions, anxieties, and social media while connecting these phenomena to the erosion of reason in politics.  This compelling analysis encourages readers to further study the current state of democracy and the necessary steps to protect and promote rationality in decision-making and public discourse.  Certainly it is an essential reading for anyone seeking a deeper understanding of contemporary political challenges.