Can Witchcraft Affect Christians?

So what is the truth about witchcraft? Is it something I should ever have sleepless nights over? How real is it? Will I be affected if someone looks at me with the "Evil eye?" As I have had opportunity to interact with various people in different countries (My husband, our children and I have lived in six different countries, on three different continents), I have met many people who say that they do not believe in witchcraft. Others say witchcraft exists, but will only affect you if you believe in its power. It is interesting to note that these beliefs are founds among both Christians, and non-Christians alike. This book gives a biblical account of what witchcraft is and how to live free from fear.