Regarding the early publications of the IHP and how they were sold and distributed, the Archives possesses numerous invoices, accounting ledger books, and correspondence that contain information such as buyers, dates of purchase, and book titles. Beyond IHP staff, purchasers include other academic institutions, government organizations, local groups, scholars, and even laypersons. To obtain their copies, remittances were the primary form of payment, with cash also being accepted, and interested readers often wrote letters inquiring about publishing information, prices, and shipments. After confirming the purchase and related details, the IHP would then send out the order. IHP publications were also circulated through exchanges or the presenting of them as gifts. In addition, libraries and bookstores in major cities such as Beijing, Shanghai, Guangzhou, and Wuhan both displayed and sold them. When purchasing books, certain buyers such as IHP staff, academic institutions, and libraires could enjoy a 20% discount, making it an even better deal.