Intended for use by institutions and agencies providing career assessment and guidance services, this reference guide provides information about the selection of appropriate career assessment instruments. The 30 career assessment instruments included in the publication are listed under the following broad categories: multiple aptitude batteries; interest inventories; measures of work value; career development and maturity instruments; skills assessments; instruments for special populations; and combined assessment programs. Information for each instrument is presented in a format that lists the following: the name of the test, the purpose of the test, the publisher, the target population, the time it takes, the cost of materials, scoring, the report format for individuals, additional comments for users, and citations of published reviews of the instrument. The guide also includes names and addresses of contacts for 15 regions in Oregon, 3 state contacts, and 5 sources for additional resources. (KC)