Practical and applicable approach to designing a website to optimize for conversion.
There are some icky tactics mentioned -- like hovering a call-to-action button, recording user activity, and displaying popup surveys when the user goes to exit -- but on the whole, the advice makes sense, and the results speak for themselves.
The book includes a case study at the end for GoHenry, a prepaid credit card for children, and how the Conversion Rate Experts helped analyze their website and improved conversion. They walk through every step, from the page's design/layout, the copy/language, and the specific pre-sales and post-sales strategies such as writing letters to the kids to raise awareness. The authors justify every action with thorough research. They also refer constantly to their work with Mobal, a Japanese travel phone provider, that offers unique real-life insights.
The authors also name several tools to help, beyond simple Google Analytics and A/B testing.
My only two qualms with the book are
1.) not having an index for easy lookup,
2.) failing to show/specify how they use each tool.
They resort too often to name-dropping lists of online tools, such as Optimizely, Hotjar, Go-To-Meet, without telling how they use each tool. They are much better when they list books to help improve writing, explaining where each book applies to the funnel.
I recommend reading this book before even deciding how to sell a product. You may need to pivot depending on competitors and keyword analyses. The book discusses niching a competitive market, which could benefit from smoke tests and user canvassing. Since they include strategies for improvement even in the absence of user data (for example, on launch), their lessons apply at any stage of the process, whether you have a flow of statistics/visitors or not.