In this course you will learn about the biodiversity around us, and the discipline of citizen science as a means to understanding more about that biodiversity. Citizen science is the public generation of scientific knowledge, and in this era of mobile technology and artificial intelligence, non-expert members of the public are providing millions of biodiversity observations each year. We will learn about the promise of citizen science for answering important questions in biodiversity science, we will contribute our own observations to citizen science databases, and we will learn how to make and interpret graphs and figures using citizen science data.