I rarely consider business or management books useful or interesting, but Dear Founder has hit an all-time low. It's supposed to give you advice on how to deal with situations commonly faced by start-up founders, but instead it just lists things to consider. For instance, when talking about raising funding, Webb casually mentions the importance of understanding terms like cap, pro rata and liquidation preference, but never explains them. Similarly, the chapter titled "When you need to focus on what's important" simply rewords the title by stating that you need to focus on important and / or urgent tasks as if it was some kind of a revelation but doesn't actually tell what IS important.
The whole division of the book into letters is a total gimmick, restricting itself to the greeting "Dear Founder" and closing "All the best" with a fake signature attached. You're supposed to read the relevant letter when a problem arises, but seriously, when would be a good time to read a letter called "When you you want to avoid nasty surprises"? When wouldn't you want to avoid them?
Thankfully "Dear Founder" is a very short book, printed in decently-sized font, with thick margins and noticeably large line spacing. I imagine even all that spacing and fluff wasn't enough fill 300 or so pages to make it publishing-worthy, so the editor was compelled to also start every 2-4 page long letter on a new page, sometimes leaving just two lines on the previous one. It's funny, because it reminds me of how I employed similar tactics in school to make my essays look longer.
Some books like Gladwell's Outliers present ungrounded, but fascinating ideas in engaging prose. Others, like The Business Book of Big Ideas Simply Explained series lack in style, but at least provide comprehensive coverage of various business concepts. And then there are books like Dear Founder which have neither form, nor substance.