No I don’t, and truthfully it’s very not long before it’s over my head and making my eyes cross. Bill Bernstein once quipped (paraphrasing): if you want an analyst for the stock market you should consult a historian, but for bonds you need a rocket scientist. It’s a lot of math and curves and counterintuitive price movements.
Whenever I’m looking for a book on something I check out this list: He Has Read Over 250 Investing Books. He Recommends These Three Funds.. So I see Why Bother With Bonds by Rick Van Ness which is probably a decent place to start.
You can read this or get what you can for free on his website: https://www.amazon.com/Why-Bother-Bonds-All-Weather-Independence/dp/0985800402
In short bonds reduce volatility at the expense of some gains some of the time. From what I understand, 80-20 is a sweet spot as stated earlier.