It looks like you’re searching for the PDF version of the book by Michael K. Brown (a well-known high-performance driving instructor and author).
If you’re on a tight budget, start with free online articles or videos about “the friction circle” and “trail braking,” then invest in the book once you’re ready to go deeper. Need a specific chapter summary or explanation of a concept from the book? Let me know — I can walk you through the key ideas. driving on the edge pdf