National Park Service technical rescue manual - free PDF
National Park Service SAR (Search and Rescue) professionals, with skills honed over decades at parks such as Yosemite, Grand Teton, and Grand Canyon, have a technical rescue manual. It’s online as a free PDF file, hosted on the Mountain Rescue Association website, MRA.org.
If you want to get into some serious rope geek material, this is some solid reading. This 290+ page document pretty much covers it all; below is a screen grab of the table of contents to give you an idea.
It starts with the basics and then gets increasingly technical and complex. Even if you're not on a SAR team, there are some expert techniques and tricks here that can benefit anyone interested in small team self rescue. Check it out.
Note: Some of the more advanced techniques have evolved since this was published in (I think) 2014. Most recreational climbers won’t need to know the detailed benefits of the dual tension system over the older style main and belay, for example. If you're looking for a more up-to-date reference, check out “The Technical Rescue Riggers Guide, Third Edition” by Conterra.
(And, in case the MRA.org link above doesn’t work, you can see a copy here.)