I recently bought the author’s book to brush some cobwebs off parts of my SQLing. Over the years I’ve seen Markus’s blog posts and guides posted here on HN. I’m

I recently bought the author’s book to brush some cobwebs off parts of my SQLing. Over the years I’ve seen Markus’s blog posts and guides posted here on HN. I’m always impressed when I see an individual focus on a topic and build an identity / business like this. Thanks for all the blog posts, Markus!