Reading This Book

• If you find a typo, error, or anything you think can be improved, click the “edit” icon and you will be redirected to the source markdown file of this page. Then you can easily edit and submit a PR.
• use left and right arrow keys to navigate to the previous/next page
• click the “font” icon on the top-left and change to a serif font if you happen to hate sans-serif fonts as I do.
• If you believe that serious stuff must be rendered by LaTeX as I do, there is a LaTex-rendered PDF for you to download (click the download button on the top)
• If you love to read on a Kindle, there is also an epub output (click the download button on the top).