Learn How I Earned $21,730 in 30 Days With Amazon and Ebay. Leon's Guide To Amazon And Ebay Teaches 3 Different Methods to SELL Products On Amazon and Ebay. This Has Nothing to Do With Affiliate Marketing. In Leon's Guide to Amazon and Ebay, you will learn 3 proven methods to actually selling real products on Amazon and eBay With REAL PROOF. Method 1: Arbitrage Method. Method 2: Cross Selling. Method 3: Reselling The Big Bucks. These are proven and current methods that can get you started in selling real products.