How to Write a Business Letter - Handouts, Slides, Rubric, Graphic Organizer. This technical writing resource is a handy guide on the six main parts of a business letter: heading, inside address, salutation, body, closing, signature. Includes a blank template, a reference sheet, two different formats, strategies handout, rubric and graphic organizer. You can print the reference sheets and the strategies handout front and back for student notebooks. Includes a handout on the difference between t