John A. Cigliano is Professor of Biology and Director of Environmental Conservation in the Department of Biological Sciences, Cedar Crest College, Allentown, Pennsylvania, USA; adjunct faculty at the Schoodic Institute at Acadia National Park, Winter Harbor, Maine, USA; and an Earthwatch Institute Principal Investigator. He collaborates with citizen scientists to study the effects of ocean acidification and warming on temperate rocky-intertidal organisms and communities. John is currently the Past President of the Marine Section, the Vice President of the Participatory and Citizen Science Working Group, both of the Society for Conservation Biology, and a founding member of the Citizen Science Association.

Heidi L. Ballard is Associate Professor of Environmental Science Education and Faculty Director of the Center for Community and Citizen Science at the University of California, Davis, USA. She leads research on what and how adults and youth learn about science, the environment, and their communities through participation in citizen science and community science. She is on the Editorial Board of Citizen Science: Theory and Practice, and a member of several professional societies' working groups focused on citizen science. She has collaborated with numerous citizen and community science projects internationally to help improve design and evaluation of their programs.

Part I Introduction 1. The Promise and Need of Citizen Science for Coastal and Marine Conservation Part II: The practice of marine and coastal citizen science for conservation.- Section Intro Paragraph 2. Defining the Baseline and Tracking Change in Seabird Populations: The Coastal Observation and Seabird Survey Team (COASST) 3. Using citizen science to address conservation issues related to climate change and coastal systems 4. Citizen Sentinels: The role of Citizen Scientists in Reporting and Monitoring Invasive Non-Native Species 5. Using citizen science to study the impact of vessel traffic on marine mammal populations 6. Marine Litter - bringing together citizen scientists from around the world 7. Using Citizen Science to Inform Ocean and Coastal Resource Management 8. Engagement in Marine Conservation through Citizen Science: A Community-Based Approach to Eelgrass Restoration in Frenchman Bay, Maine, USA 9. Citizen Science and Marine Policy Part III: The People and Perspectives of Marine and Coastal Citizen Science: Diverse Interests, Needs, and Benefits 10. Collaborating with indigenous citizen scientists towards sustainable coral reef management in a changing world: the One People One Reef Program 11. Engaging Youth and Schools in Coastal Citizen Science: Balancing Both Education and Science Goals 12. Uniquely marine: snorkelers and divers as citizen scientists Part IV Conclusions - Lessons Learned and Best Practices for marine and coastal conservation citizen science 13. Communication and Trust-Building with the Broader Public through Marine and Coastal Citizen Science 14. Conclusions: Lessons Learned and Next Steps for Citizen Science in Marine and Coastal Conservation