Find grey literature and policy

Overton’s advanced search query builder has two modes: standard and expert. Both are designed to help you discover the policy...

Learn how our advanced search query builder in standard mode works and which search strategies you can use. What is...

What is expert mode? Our advanced search query builder guides you to create effective, precise searches. Our advanced search includes...

Introduction to expert mode syntax This article will cover the specific search syntax that Overton’s advanced search uses in expert...

Find similar policy documents using semantic search

Overton currently has over 650,000 topics connected to policy documents. Topics can be useful when trying to locate policy documents...

Overton’s full-text search function is powered by Elasticsearch. The default relevance scoring algorithm used by Elasticsearch is BM25, which is a version...

When you run a search in the ‘Search Policy Documents and Grey Literature’ search, you can view the results in...