Should science focus on issues of public importance/respond to public concerns? What are the benefits of citizen involvement in scientific research? What are the pitfalls? These and many more questions are frequently raised by those engaging or wishing to engage in Citizen Science (CS). This two-day workshop was designed to provide input into what CS is and how CS projects can be implemented in universities and research libraries. The workshop focused on: • The basics of CS and its benefits; • Requirements to take into consideration when involving citizen scientists in research projects; • Examples and benefits of integrating CS into educational programmes; • Practical guidance on how to develop and implement CS projects; • Examples of CS research projects. This was a two-part workshop held on the 2nd and 4th June 2021 as part of the INOS Project Open Knowlege Activities.