I love this:
250 anthologies of poetry by WB Yeats were set free in Dublin on Monday, July 9th, 2007 by the National Library of Ireland. The books which were left on trains, buses, cafés, pubs, hotels and public spaces throughout the city were distinctively labelled with an invitation to savour the work of the great poet and a request to leave the book in another public place for someone else to enjoy.
Yeats Book Crossing was inspired by the concept of Book Crossing in other countries. It is hoped that the books, which have been specially purchased by the Library for this book crossing initiative, will be enjoyed by people of all ages, will promote a greater engagement with the poetry of WB Yeats and will lead to visits to the Library’s award winning exhibition Yeats: the life and works of William Butler Yeats.
Each of the books is marked with a unique code. Readers can report a sighting and log their comments here on the National Library’s website. This log will in turn become a record of the journey of each of the 250 books as they wander through public spaces in Ireland and abroad.
You can view the reader reports here.