To book the best St. Louis wedding photographer, there are a few steps you can take:

1. Research and compile a list of potential photographers in the St. Louis area. Look for photographers with a style that aligns with your vision for your wedding photos, and read online reviews and check out their portfolios to get a sense of their work.
2. Set up consultations with the photographers on your shortlist. This will give you the opportunity to meet with them in person, ask any questions you may have, and discuss your specific needs and preferences.
3. Ask for references and review past clients’ experiences with the photographer. This will give you a sense of their professionalism and reliability, and can help you make an informed decision.
4. Consider the photographer’s availability and pricing. Make sure they are available on your wedding date, and discuss their packages and pricing to ensure it fits within your budget.
5. Once you have chosen a photographer, be sure to book them well in advance to secure their services for your wedding. It is also important to discuss the details of your wedding photography, including the location, the number of hours they will be needed, and any specific shots or poses you would like them to capture.

By following these simple steps, you can ensure that you book the best St. Louis wedding photographer for your special day.