Libraries, including research libraries, have evolved from providing information to users to complex service systems. In this process, libraries have embarked on an innovation journey. Social innovation in libraries are increasingly important trends, but literature is not very helpful to novices looking for the basics & best practices. Aiming to bridge this gap, LibrarIN presents a practical implementation guide. The workshop will showcase examples of living labs in research libraries, an experimental approach to innovation processes by engaging multiple stakeholder groups. LibrarIN aims to validate these guidelines with the workshop audience, tailoring them to the needs of library management & staff.