Lena Dunham and other writers are using Substack to reach readers directly and sell more books. It’s hard enough to publish a book, but getting people to buy it is an entirely different battle. As new ...

Michael Burry of "The Big Short" fame has pivoted from investing to writing, launching a paywalled Substack called "Cassandra Unchained." Burry says the blog, which has amassed more than 23,000 ...