Headings and subheadings are an important part of any report. They follow uniform styles throughout, and often use a decimal style to subdivide topics, although some writers prefer not to have numbers and letters in the headings and sub-headings. What's important is to determine the style that you will use, and then apply the format consistently throughout. Examples are included below.

• 1. Main heading
  • 1.1 Subheading
  • 1.2 Subheading
    • 1.21 Sub-subheading
    • 1.22 Sub-subheading
• 2. Main heading
  • 2.1 Subheading
  • 2.2 Subheading
• 3. Main heading
• I. Main heading
  • A. Subheading
  • B. Subheading
    • 1. Sub-subheading
    • 2. Sub-subheading
• II. Main heading
  • A. Subheading
  • B. Subheading
• III. Main heading