I don't believe it has been reprinted.
F.Y.I. here is the : used the characters to do a comic strip in his college newspaper called "The Lantern" at state. The strip was called "Thorn" not bone originally, hence the title Thorn: Tales from the Lantern. This book is a collection of those newspaper strips.
After he left , he created the Bone comic book published by Cartoon Books.
So these strips are non-canon story wise to the Bone comic, but it's a really cool book.
I want to say the print run was a couple thousand but I'm not sure. Bear in mind though they were sold/given out on the Ohio State campus not sold to comic book collectors. So the majority of them were destroyed, thrown away, etc...
They are REALLY hard to find.
I've only seen 2 ever come up for sale. One was the really nice one mentioned previously that sold last summer. The other one had a big coffee ring stain on the cover. The person selling it was an Ohio State graduate who learned it was valuable and sold it on (not a comic book collector).
I've never actually seen one in person.
Couple comments:
1. No it was never reprinted and Jeff Smith has stated it will never be reprinted. However, *some* of the work was reprinted in a limited edition book put out in 2008.
2. The storyline is not the same or correlated to the comics but is extremely similar. The Bone comics are obviously heavily based on the newpaper strips collected in this book. This was not all, but some of the strips used in the paper school newspaper "The Lantern". Some of the panels look almost the same as those used in the comics. It's quite interesting for a collector to read.
3. 1000 where printed and supposedly out of those only 600 sold. 600 books sold 10 years or so before the comic caught on and at a college campus of all places. The book is over 25 years old now. Not many seem to have survived for obvious reasons.