The author says,
(Location 647 - Kindle version)This book provides the basis of prevention, identification, and long-term management of survivable medical conditions and can be performed with minimal training.
But he also says,
(Location 1049 - Kindle version)The only way to learn this technique is to take a CPR course— it cannot be properly self-taught.
Apparently this handbook is only a guidance, and the readers will have to take additional classes for training. Seemingly reading this book is not enough. What do you think? Has the author contradicted himself?