There is no one-size-fits-all answer to this question, as the best way to format a UX design cover letter will vary depending on the specific position you are applying for and the company you are applying to. However, there are some general guidelines you can follow to ensure that your cover letter is professional and effective.

First, make sure to include all of the necessary information in your cover letter, including your contact information, the position you are applying for, and why you are qualified for the role. In addition, be sure to proofread your cover letter carefully before sending it, as any typos or errors could reflect poorly on your candidacy.

When it comes to the actual format of your cover letter, it is generally best to keep it concise and to the point. Stick to one or two pages at most, and avoid lengthy paragraphs. Instead, use short, concise sentences and bullet points to highlight your key qualifications and experiences.

Finally, be sure to tailor your cover letter to each individual position you are applying for. Generic, mass-produced cover letters are often less effective than those that are specifically tailored to the company and position in question. Taking the time to customize your cover letter will show that you are truly interested in the role and will give you a better chance of standing out from the competition.