The 1994-95 Disability Supplement to the National Health Interview Survey (NHIS-D) sponsored by the US Department of Health and Human Services provided a rich resource for the quantitative studies included in this volume. Nationally representative surveys that focus on collecting more in depth information about persons with disabilities are rare, therefore these studies are unusual in the level of data they include and the important insights into disability issues that they provide. These come at a time when much more information about the experiences of disability is needed to inform policy and evaluate programmatic changes. The first paper of the volume discusses in detail the genesis and methodology of the NHIS-D. This volume contains an exciting variety of different types of papers that add not only to our information about persons with disabilities, but also serve as a useful guide to using this extensive data set to address the numero.