This document discusses improving search and exploration in large document collections through information visualization and visual search interfaces. It describes how current search engines better support lookup tasks but provide less support for exploratory search. The document outlines different types of information visualizations that can be used at the collection, document and intra-document levels. It proposes a query-focused, document-level visualization approach to help users discover connections between documents and compare/contrast content across dimensions. Some limitations and plans for future evaluation are also mentioned.