For a general overview and history:
* "Democracy: A Very Short Introduction" by Bernard Crick: This concise book provides a broad introduction to democracy, including direct democracy's historical context and contemporary applications.
* "Democracy in America" by Alexis de Tocqueville: While not explicitly focused on direct democracy, this classic work explores the American democratic experience, including its use of direct democracy mechanisms like referendums.
For a deeper dive into theory and practice:
* "Direct Democracy: An International Handbook" edited by John D. Huber and Markus M. L. Crepaz: This comprehensive handbook explores the theory, history, and contemporary practice of direct democracy across different countries.
* "The People's Power: The History of Direct Democracy in America" by Thomas E. Cronin: This book traces the evolution of direct democracy in the United States, from its roots in the early republic to its modern forms.
* "The Will of the People: How Public Opinion Has Shaped the United States" by James Fishkin: This book examines the role of public opinion in shaping democratic decision-making, including the influence of direct democracy mechanisms.
For a focus on specific examples:
* "The Swiss Democracy" by Kurt Eichenberger: This book provides an in-depth analysis of Switzerland's unique direct democracy system, which is widely considered a model for other countries.
* "The California Recall: The Impeachment of Governor Gray Davis and the Election of Arnold Schwarzenegger" by Joseph P. Viteritti: This book examines the controversial 2003 recall election in California, highlighting the strengths and weaknesses of direct democracy in practice.
Beyond books, you can also explore online resources:
* The Center for Democracy and Technology: This organization provides information and resources on direct democracy and other democratic reforms.
* The International Institute for Democracy and Electoral Assistance (IDEA): This organization researches and promotes democratic governance, including direct democracy practices.
The best book for you will depend on your specific interests and level of knowledge about direct democracy. Remember, there are many different perspectives on this topic, so it's important to read a variety of sources to get a well-rounded understanding.