How do I determine the value of a specific Deadpool comic?

The value of a Deadpool comic depends on several factors, including its condition (graded by companies like CGC or PGX), rarity, and the issue number. You can check online marketplaces like eBay, Heritage Auctions, and MyComicShop to see recent sales prices for comparable comics. Grading is crucial; a higher grade (e.g., 9.8) will command a significantly higher price. Key issues (first appearances, significant storyline starting points) are usually the most valuable. The condition of the cover and the presence of any defects will also impact the price.