Write a letter of resignation. It's up to you how detailed you want to make it.In this article, we share tips for writing a short, simple resignation letter and offer examples for you to reference when creating your own. Learn how to write a professional resignation letter with our step-by-step guide, easy to use templates and helpful tips. Add contact details, company name, and date. Below is a standard sample of letter of resignation for general use. Kamala Harris blasted the treatment of staff on the California Democrat's presidential campaign in a resignation letter this month. It's also best practice to send your resignation letter to your employer at least two weeks before your last day at the company. Kamala Harris blasted the treatment of staff on the California Democrat's presidential campaign in a resignation letter this month. Sincerely, Marcus Harris.