When writing a guide, which feature is most effective to keep readers informed without overwhelming them?

Using headings and subheadings is the most effective feature for keeping readers informed without overwhelming them. This approach organizes content into manageable sections, which allows readers to quickly locate specific information and understand the structure of the material. Headings provide clear markers that categorize content, making it easier for readers to scan the text and identify the topics or sections that are of interest to them. This clarity and organization reduce cognitive load, leading to better comprehension while also allowing for a more pleasant reading experience.

The other options, while they have their benefits, do not achieve the same balance of clarity and accessibility. For instance, dividing text into four columns might make the text difficult to follow, especially for complex information. Extensive graphics can sometimes distract or confuse readers rather than conveying information simply. Limiting information to one page can restrict the depth of coverage and may prevent readers from gaining a comprehensive understanding of the topic. Thus, employing headings and subheadings stands out as a superior method for presenting information effectively in a guide.