On Amazon, there are three primary types of bidding strategies you can employ for your advertising campaigns. These include manual bidding, automated bidding, and enhanced cost-per-click (eCPC). Manual bidding gives you complete control over individual keyword bids, allowing for flexibility and customization. Automated bidding utilizes AI algorithms to automatically adjust bids based on real-time data, saving time and optimizing performance. eCPC focuses on maximizing conversions by automatically adjusting bids based on conversion likelihood.