There's a lot of reliable information on intermittent fasting out there, most of it by nutrition experts and medical professionals. There are hundreds of blogs and testimonies from people who have tried it. There's also a large volume of research on the benefits of intermittent fasting with very positive findings.
This book will save you the trouble of reading through hundreds of websites and dozens of studies. It will condense the most relevant information, and proven tips. These are all of the key basics you need to know in order to make an informed decision about whether it's for you.