What are the two types of stamp stock mentioned?

The answer highlights two important categories relevant to stamp stock management within a commercial setting. Retail floor stock refers to the stamps that are readily available for customers to purchase. This stock is displayed on the sales floor and is meant to attract customers and facilitate immediate sales.

On the other hand, unit reserve refers to the stamps that are held in reserve for future sales or to replenish retail stock as it diminishes. This reserve helps ensure that the retail floor stock is consistently maintained and supplies are not depleted.

Recognizing these two types of stock is essential for efficient inventory management practices, as they help balance availability, accessibility, and customer service, ensuring that customers can always find stamps while also minimizing the risk of overstocking or running out of popular items.