Downloading directly from reaper.fm ensures you aren't accidentally grabbing malware hidden in a compressed archive.
While compressed .rar files are often used to bundle documents, they can sometimes be risky if they come from third-party sites. The official is actually maintained as a high-quality PDF that is free to download and updated constantly. Format: 400+ page searchable PDF. Download Reaper Manual rar
The Ultimate REAPER User Guide: Why You Don't Need a .RAR File Downloading directly from reaper
Once you've grabbed your manual, here are the three things every new REAPER user should check first: User Guide - REAPER from "Viking" compression to "routing matrices".
Geoffrey Francis (the essential community-trusted guide).
Use Ctrl + F to instantly find what you need, from "Viking" compression to "routing matrices".