Between 2004 and 2008, the Council for Advancement of Adult Literacy (CAAL) published four lengthy research reports on projects to examine the nature and effectiveness of Adult Education English-as-a-Second-Language (ESL) programs at several community colleges. The research was conducted by field studies, interviews, and the review of a large amount of related data. The purpose of Findings in ESL is to make that ESL research more readily accessible to general audiences by summarizing the major findings in a concise, easy-to-read format. Strictly speaking, the findings are based primarily on data gathered from the colleges examined and apply only to college ESL programs. However, an examination of the literature on ESL as well the experience of the CAAL researchers with programs managed by local education authorities and other organizations leads us to believe that most of them are applicable to a wide range of ESL programs. For this reason, where appropriate, some findings in this document are stated as conclusions about the ESL field as a whole. The purpose of this brief summary is to make CAAL's ESL work more readily accessible to general and ESL audiences who may not have the time to wend their way through the fairly dense full-length reports. (Contains 4 footnotes.)