As in: the pdf, the outdated print version, or all those policy documents that people need to sign.
If it's long, people won't read it, and set it aside for a later time that will never come. A good way to write less is to stick to the essentials, remove the jargon, and keep things simple.
This is so important in remote settings when you're unsure who to reach out to, or who is the reference for a specific topic.
When made properly, the handbook can become the centerpiece of your company's internal content. Make sure it's woven into your daily processes, new projects, strategy updates, and important announcements. Keep it exactly where the work is happening and it'll stay relevant forever. Besides, new hires learn how your company runs by seeing it in action, not by reading about how it operates.