To join the Detroit Tigers' newsletter, interested individuals typically need to visit the official Tigers website, where there is usually a section dedicated to newsletters or fan engagement. This section may require users to enter their email address and possibly other basic information to subscribe. By signing up, fans will receive updates on team news, game schedules, promotions, and special events straight to their inbox. Additionally, the website may offer options to customize preferences for the types of information subscribers wish to receive. It is always a good idea for fans to check the current web page for the most accurate and up-to-date information regarding newsletters, as processes may change.