Volume discounts are automatically applied for orders with 10 or more books. If you have a promo code that will give you a better deal than the volume discount then you can enter your promo code instead--that will remove the volume discount.
In most cases, our marketing promo codes have a maximum amount, such as a $100 cap, so you might be better off keeping the volume discount. If you change your mind, empty your cart and start again, and the volume discount will reappear. (
Note that volume discounts are applied to Blurb's "base price" only. Volume discounts will not apply to any mark-up added by the author. So if the base price of a book (the price before any author-added mark-up) is $30, and the author has added a $5 mark-up on top of that, the volume discount would only apply to the $30.
Discounts for schools, non-profits, professional photographers, etc.
Blurb does not have a specific discount option for professional photographers, schools, non-profits, or other organizations. However, if you'd like to request that Blurb sponsor your event or donate a prize (as for a charity raffle) please contact customer support and we'll connect you with our sponsorships department.