This handbook gives the adult student information to complete portfolios that are designed to help adult students earn college credits for outside experience. Portfolio assessment is a flexible and efficient way to earn college credit. Nearly any area of learning can be converted into credits as long as it is taught at a regionally accredited college or university and the student can prove expertise in the subject. The portfolio is a collection of data assembled in an approved format to demonstrate college-level knowledge for the award of credit. The five steps in putting a portfolio together include: (1) taking an inventory of one's knowledge; (2) choosing the area for which one wants college credit; (3) finding course descriptions to match one's learning; (4) providing evidence of one's knowledge; and (5) describing what one knows and how one knows it. Other aspects of the portfolio assessment process are described, including fees and policies of the college. Examples of narratives are provided, and the registration form and course selection cover sheets for applying to the Thomas A. Edison State College in Trenton (New Jersey) are included. (SLD)