White papers traditionally can be almost any length. I&#x27;ve written some that are 3 pages long, others that are 15-20 pages. Each with variation in technical information, ranging from &quot;Here&#x27;s what&#x27;s important to know in this knowledge domain&quot; to documentation of a proprietary programming language.<p>While some of these are written by analyst firms, quite a few are not. They&#x27;re work-for-hire, often by techies or journalists who know the area in great depth, and who can ask the in-house experts the right questions and turn those answers into something genuinely useful. (Well, when they&#x27;re good. Mine are good. :-) )