Employment Offer Letter Instructions. In this article, you'll find guidelines to help you create your own letters along with offer letter templates you can use to hire people more quickly.Many of the forms need to be downloaded before you can make edits. An offer letter is a written contract of the terms of employment. Well-written offer letters can seal the deal for new employees. We think offer letters are a great place to educate employees about startup equity. See ours and download our job offer letter template for free. Use our fully customisable template to share the details of their offer. This job offer letter and email template includes; Download the free template now! An offer letter is a document that holds the terms of employment for a new hire.