This series on Howard Marks is long, and each article is also fair in length, but when talking about Marks’ memos I like to put it this way:

For every one ounce of effort you put in, you’re getting five ounces of insight back. These might be heavier than other articles on Substack, but the sheer amount of insight on offer is hard to ignore, and makes the effort put in more than worth it.

Do check it out if you haven’t already.