The 3rd International Conference on Language Documentation and Conservation (ICLDC), “Sharing Worlds of Knowledge,” will be held February 28-March 3, 2013, at the Hawai‘i Imin International Conference Center on the University of Hawai‘i at Mānoa campus. By popular demand, the 3rd ICLDC will be a full day longer than the previous two conferences. The conference program will feature an integrated series of Master Class workshops. An optional Hilo Field Study (on the Big Island of Hawai‘i) to visit Hawaiian language revitalization programs in action will immediately follow the conference (March 4-5). This year’s conference theme, “Sharing Worlds of Knowledge,” intends to highlight the interdisciplinary nature of language documentation and the need to share methods for documenting the many aspects of human knowledge that language encodes. We aim to build on the strong momentum created by the 1st and 2nd ICLDCs to discuss research and revitalization approaches yielding rich records that can benefit both the field of language documentation and speech communities.