title: Any thing about How to Design Components mentioned in How to Design Programs?
body: <p>I've just started reading How to Design Programs (2nd edition) on <a href="https://htdp.org" rel="nofollow noreferrer">htdp.org</a></p>
  
  <p>There are several notes in this book mentioned next volume called How to Design Components (e.g. the 3rd note in <a href="https://htdp.org/2019-02-24/part_one.html" rel="nofollow noreferrer">part one</a>), however, I just can't google anything about the 2nd volume book.</p>
  
  <p>I'm wondering why it is so hard to find any information about the latter volume. Has it finished? If it has not finished yet, how can I get information about the book?</p>