Taking into account school schedules and other holidays and charity events, Britain's Booksellers Association is celebrating UNESCO's "World Book and Copyright Day" earlier than the April 23rd global celebration. Of course, doing so is not a problem for those of us at AI--here every day is "World Book Day".
The added good news, though, is that the purchase of a national "book token" is used as a conduit for £1 book purchases by schools all around the UK and Ireland. --Not a bad way to spread the love of reading...