This document discusses how examining evidence, value, and impact can inform the library and information science (LIS) research agenda. It notes that LIS research ranges widely but is often poorly funded and recognized. With funding cuts, LIS must justify its value and impact. The document advocates adopting techniques used by policymakers to demonstrate cost-benefit analyses and impact case studies. It also stresses the importance of human-centered research and involving practitioners and end users in research. Finally, it calls for identifying priority research areas and collaborating to develop the LIS research agenda and secure necessary funding.