“StackLife lets you browse all of the items in Harvard’s 73 libraries and Book Depository as if they were on a single shelf. It’s built on a few core ideas:

1. Every book has a context – StackLife shows you that context as a stack of neighboring books

2. Every book has many contexts – StackLife lets you switch contexts just by clicking. The default stack shows the item in its primary subject classification. But since most works have been classified under more than one subject heading, you can click on any of those headings and see it grouped with those neighbors.

3. Every book has some community relevance – StackLife heat-maps books to reflect how often they’ve been checked out, put on reserve, called back early from a loan, etc. Also, it’s not just books. StackLife lets you browse among all of Hollis’ catalog, including DVDs and CDs.”