The book retails at US$40 a book; but the publisher will sell them at discounts depending on volume
10 % off for orders of 20--49
20 % off for orders of 50--99
25 % off for orders of 100 or more.
That does not cover shipping etc. but it could be possible to find a way to either bring or ship the volume to one location and be brought around on a book tour.
Jerome F. Keating