Toward Understanding Homelessness: (Report)12 papers from the 2007 National Symposium on Homelessness Research; brought together 200 researchers, policy makers, government officials, service providers, and consumers from across the country to discuss the research papers and directions for future research related to homelessness. This Symposium was a follow-on event to the first National Symposium on Homelessness Research, which took place in 1998 and was also sponsored by HHS and HUD.