Bolded words, which are heavily darkened words in a text, are one organizational aid. Bolded words draw the reader’s attention to that word; often, those words can be found in the glossary. Headings, which are words or phrases that appear at the head of a section, are a second organizational aid. Headings help the reader identify the topic of the information that is to follow and can help the reader to group information into more manageable chunks.