The place to start searching for books (both print and electronic) is Harvard's library catalog, HOLLIS:

For help with HOLLIS, see the HOLLIS User Guide.
Search tips:
  1. Sign in to HOLLIS with your Harvard Key for the most complete results and a more streamlined user experience.
  2. Use the "Library Catalog" search option (not "Everything") if you're looking specifically for books, journals, or previous PAEs.
  3. Use filters and facets to refine your search results if necessary, or use the advanced search option for more targeted searches.


Scholarly articles
For scholarly articles, start with one or several of our broad, multi-disciplinary databases:

Then, explore the more specialized resources recommended in our subject-specific research guides (e.g., International Development, International Relations, or National & International Security) -- see the tab on the right.

Policy papers and other gray literature

First, try our HKS Think Tank Search, a custom Google search across the websites of 1,200+ U.S. and international think tanks. Simply search using standard Google conventions (i.e. putting quotation marks around phrases). List of types of grey literature.


Also of interest:

Beyond the resources on the "multidisciplinary databases" tab, you should also explore more specialized resources, depending on your particular focus. HKS librarians have compiled these into a variety of research guides, for example:

Most past PAEs can be discovered in HOLLIS. If you know the title and/or author, you can use these to search for the PAE. You can also enter "policy analysis exercise" using quotes in your search and add keywords to find relevant PAEs.

Here are some example searches including keywords:

Starting with the MPP class of 2020, PAEs are available electronically. Earlier PAEs can be requested in print using the "request pickup" option on their respective HOLLIS record; they will be delivered to the HKS Library and can be used in the library only.

For help with searching and finding PAEs, go to How do I find PAEs that are held at the HKS Library.

Most HKS Library research guides have sections on data and statistical resources relevant to the particular topic. When in doubt, you can also always check the guide to Data Resources for HKS Affiliates, which provides information about general data resources, data security, and data management, among others.