Final answer:
Best practices for the Design team regarding spec book formatting include a table of contents in the first 20 pages, spec section numbers in headers or footers, and avoiding confusing text in these sections.
Step-by-step explanation:
When communicating best practices for the formatting of the spec book to the Design team, it is important to consider all of the following: ensuring the table of contents is within the first 20 pages for quick accessibility; including the spec section number and description in the header or footer of every page for consistent reference; and avoiding any misleading text that could be confused with spec section numbers in the headers or footers to maintain clarity. These practices will facilitate an organized and easily navigable spec book, benefitting both readers who are using physical copies as well as those accessing the spec book electronically, where features like hyperlinks and digital breadcrumbs enhance navigation further.