Identify your key message, and put it first. People tend to scan web pages rather than read them closely, so consider putting your main point in the first paragraph, or better yet, in the heading. This in known at the "inverted pyramid style" used regularly by journalists and technical writers.
An inverted pyramid style (figure 1) requires a major shift in thinking and writing. Most of us were taught to write in a narrative style, developing an essay in a logical order that concludes with a main point. However, most Web users want the conclusion first. In addition, blind users prefer this style because it allows them to scan Web content with their ears. (Redish: 2012)
Figure 1. Inverted pyramid style
(Redish: 2012)
If you must use terms such as acronyms, brand names, Catalog, or Database, expect that significant number of users will not interpret them correctly.
such as Borrowing from Other Libraries instead of Interlibrary Loan, or a Find Books option in addition to the library catalog name. Whenever possible, include "target words", such as Book or Article, that correspond to the end product the user is seeking. When needed, introduce more precise technical terms on lower-level pages.
Use additional words and/or graphics to provide a meaningful context. Where appropriate, use tips or annotations -- but don't count on users pausing to read them. Provide glossaries of library terms, or "What's this?" explanations of individual terms.
when a top-level menu choice presents ambiguities that can't be resolved in the space available. For example, have your Find Books link lead to a page offering the local catalog, system or consortium catalog, e-books, WorldCat, etc.
where users are likely to make predictable "wrong" choices. For example, put links to article databases in your online catalog and on your Find Journals page
to reduce cognitive dissonance and encourage learning through repetition. Use terms consistently throughout your website, and if possible in printed materials, signage, and the actual names of facilities and services.
(Kupersmith: 2012)
Figure 1: Use the headings options under the Format drop-down menu.
(Redish: 2012)