Work Less, Earn More

This was excellent precisely because its written specifically for agencies: everything is directly applicable. His breakdown of agency roles, in particular, is invaluable, and he clearly understands our pain points. If you run an agency, pick this up immediately.

It's definitely more of a workbook, so set aside time to work through the chapters, and you'll end up with a 90 day action plan at the end of it. The downloadable workbook is worth getting as it's an editable Google doc, so it's easy to work through alongside the book itself. You will have to sign up for Karl's email list, but if you're an agency, you should be on it anyway. He shares nothing but extremely well-written, highly valuable advice and his blog is a gift.

I read a lot of business books, and Work Less, Earn More feels like a distillation of the methods from all the best ones, but for agencies. If you've read Traction (EOS), The 12 Week Year, anything by David C. Baker or Blair Enns, The E-Myth... you'll pick up on this immediately. This is an excellent place to start even if you haven't read those books (and his reading list in the back is excellent).