This document provides statistical information on the employment of people with disabilities. Data included in the book are derived from national surveys and other analyses by federal agencies. Each of the four sections in the publication address an aspect of work and disability. Section 1, "Prevalence of Disability among Working-age People," presents information on the definition of disabilities that are used, estimates of how many working-age people have a disability, and information on variations among the states in terms of rates of work disability. Section 2, "Work Disability and the Labor Force," examines patterns of work, types of employment, and earnings of people with disabilities who are in the labor force. Data on labor force participation by state, age, gender, and education are also presented. Section 3, "Factors Related to Work Disability," discusses what chronic health conditions are the most frequent causes of work limitation and how occupational injuries and illnesses affect work disability. The influence of demographic factors is also addressed. Section 4, "Work-related Resources," describes benefits from federal programs assisting people with a work disability. An appendix provides information on the sources of the data, and limitations of each source. (Contains 31 references.) (CR)