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For volume or bulk orders, corporate or government discounts, or information concerning special sales, please contact us directly at interRAI@obs.com. We accept Purchase Orders from most businesses. Our discount schedule for bulk orders of paper books is as follows:
| Order total | Discount |
| $500–$1999 | 15% |
| $2000–$4999 | 25% |
| $5000+ | 30% |
Please note:
Ebooks: If you are interested in a multiple-copy ebook purchase and discount for your institution, please email us and we’ll work with you.
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