This book presents a selection of wide-ranging case studies that provide insights into the design, interaction barriers, and lessons learned from a diverse set of participants.

A selection of case studies in the field of geographic citizen science casting insight on future research. Unbeknownst to them as they made their scientific discoveries, Isaac Newton, Charles Darwin, and other "gentlemen scientists" would later inspire a field of scientific practice and innovation known as citizen science. Today, the growth and availability of citizen science projects have been substantial, as anyone can now contribute to a scientific discipline without professional qualifications. As a subset of this movement, geographic citizen science presents a unique approach towards supporting the participation of everyday citizens in the collection, analysis, and dissemination of scientific data. This book presents a selection of wide-ranging case studies that provide insights into the design, interaction barriers, and lessons learned from a diverse set of participants. The volume captures the current status of research and development of geographic citizen science, providing critical insight to inform technological innovation and future research in this area.