Support
We answer client emails within one business day (Mon–Fri, 9 AM – 5 PM Eastern Time).
All In One Prep Center LLC · 238 Lindbergh Pl, Paterson, NJ 07503, USA
How the service works
- We source wholesale used books and analyze them against market demand and pricing.
- Recommendations appear in your private client portal.
- You approve the titles you want and pay securely by card.
- We source your order and ship it to your warehouse, ready to list.
Connecting your Amazon selling account
Connecting is optional but recommended: it lets us filter out titles your account is not allowed to list, so you never buy inventory you cannot sell.
- Sign in to your client portal at portal.readybooksupply.com.
- Click “Connect my Amazon account”.
- You are taken to Amazon Seller Central, where you sign in with your own credentials and approve the ReadyBookSupply Eligibility Checker application.
- You are returned to the portal and see a confirmation.
We never see or store your Amazon password. We use the connection only to check listing eligibility for specific products, and we do not access buyer, order, or payment data.
Revoking access
You can disconnect at any time: in Amazon Seller Central go to Apps & Services → Manage Your Apps and revoke authorization for ReadyBookSupply Eligibility Checker. You may also email us and we will delete your stored authorization.
Orders, shipping and returns
- Shipping: orders ship to the warehouse address on your account. Shipping cost is calculated per order.
- Order issues: if a book arrives damaged or does not match the described condition, email us within 14 days of delivery with photos and we will make it right.
- Billing questions: email us with your order date and we will send a copy of the receipt.
Becoming a client
We work with professional booksellers by application. Submit the form on our home page and we will get back to you within one business day.