While starting my book notes series, I use the highlight feature frequently on my Kindle while reading. When I was drafting the post for the first book, I began typing the highlights manually. After typing three notes, I looked for an automated option, because I am always thinking about efficiency. Soon I stumbled upon Bookcision created by Ryan Norbauer and this tool is glorious!
Follow the instructions on the website linked above to save the bookmark tool and log into amazon.kindle.com to see your highlights. Although you can see your highlights on the Kindle site, Bookcision lets you download them in TXT, XML or JSON. Amazing!