PUBLIC MARKS from sbrothier with tag taxonomy

This is a stunningly fresh and appealing approach to physical tagging, folksonomy or maps of relatedness. Typographic Links is a collectable hand-sewn publication, which maps interesting links and connections through the world of typography. The aim was to create a book and accompanying poster that took a light-hearted look at typographic practice. Thread is used to create three-dimensional hyperlinks that guide the reader through the pages of the book.

Fantastic, concise, explanation of tagging.

as seen on Hotlinks ;)