He is honest about it. He wants the book's readers to buy his fonts. He says so. That doesn't mean the page is an ad; it means that the page has an ad on it, an

He is honest about it. He wants the book's readers to buy his fonts. He says so. That doesn't mean the page is an ad; it means that the page has an ad on it, and he suggests several alternatives that he didn't design. https://practicaltypography.com/how-to-pay-for-this-book.html https://practicaltypography.com/how-to-pay-for-this-book.htm...