A successful search will open up the search results overview page under the Search Results tab, where the total number of hit documents is displayed at the top of the page and then the distribution of hits within categories and volumes is shown below, sorted by descending number of hits.
Hits gives the number of hit documents in the particular volume.
Category gives the category within the Science of Synthesis classification system.
Volume shows the volume number within the Science of Synthesis book series. The green bar shows the proportion of hit documents contained in that volume.
Click the button for content information on categories or volumes. Click the Volume link to sort this list by volume.