How many spaces should you leave between the initials in a person's name?

In professional writing and formatting, initials in a person's name are typically presented without any spaces in between. This approach ensures a clean and concise appearance, making it easy for readers to recognize the initials as part of the person’s name. For example, if someone's name is John Michael Smith, using the initials "J.M.S." effectively communicates the name without adding unnecessary gaps that could create confusion or disrupt readability.

This standardization is often followed in various formal documents, including resumes and business letters, where clarity and professionalism are essential. Thus, the appropriate formatting is to have 0 spaces between the initials.