Total reach refers to the total number of people who have seen or been exposed to a particular piece of content, product, service, or brand in some way. It is an important metric for measuring the overall impact and effectiveness of marketing efforts, as it provides insight into how many potential customers or clients are being reached by a given campaign. Total reach can be calculated by adding up all the individual reaches (i.e., the number of people who have seen one specific ad, post, or piece of content) to get an overall picture of how far-reaching a particular message is. In other words, total reach represents the full scope and potential impact of a marketing strategy in terms of its ability to connect with and engage an audience.