This paper describes an evaluation of a prevocational Work Experience Project called New Leaf, which offers unemployed homeless men and women the opportunity to acquire essential work-related social and employment skills in connection with vocational and educational services and drug-free treatment in a therapeutic community. The evaluation covers 11 months during which 142 men and women received on-site work experience and prevocational training while living in 18-month residential therapeutic communities that provide drug treatment services, transitional housing, and support services. The evaluation used a description evaluation approach with multiple outcome measures to assess changes that occurred as a result of project participation. Data collection consisted of information provided by participants in interviews with a trained research assistant, repeated measure ratings made by project staff using seven test instruments, and employment and housing status information. Results indicate that: (1) 61 percent of the participants remained in the program for the first 21 days; (2) 87 percent of 90 eligible participants maintained a positive Work Experience rating for 7 of 13 weeks; (3) 28 percent of 90 eligible participants made measurable progress toward employment; and (4) of 2 participants who completed the program and were eligible to seek outside employment and permanent housing, 1 was able to find a stable job and both found permanent housing. Included are eight tables. (JB)