I have arranged to provide for a book signing at a local bookstore. The last time I had one was when I provided the copies of the book, and the store owner charged retail and we split the proceeds down the middle. That meant that I ended up with a bit less, since the cost of the books themselves came out of my pocket. This time, the bookstore propose a sixty-forty split. Should I insist that they deduct the cost of the books from the proceeds before we make the split, or should I absorb the cost of them? I don't know what the standard procedure is here, and I'm hoping that people could share their experiences with me.