The Carnegie Library Lab aims to promote innovation and leadership in libraries across the UK and Ireland. It provides funding, training, mentorship and evaluation support to early to mid-career library professionals to develop and implement innovative projects. The two-year program has supported two cohorts of 5-7 innovators each, providing £5,000-£15,000 per project. Participants receive online learning modules, build professional networks, and work with mentors and advisors to reflect on outcomes. The goal is to cultivate a new generation of library innovators and leaders, pilot innovative services, and share learning to advance the field.