The chapters are available as downloadable PDF:s here https://humanurehandbook.com/contents.html

agreed! might be oversharing, but I've started this whole end-to-end process, since buying my house in a city. Going surprisingly well, surprisingly enjoyable.

No need to bring in outside fertilizer, not flushing hundreds of gallons of potable water per month into the sewer, and I get top-notch compost to use for growing veggies.