I love this book! It is full of examples of anwered prayer and gives encouragement. I have already purchased 3 extra copies for friends going through difficult times and am getting ready to purchase more! You don't have to be going through a difficult time to read this, though. Anytime is a good time to be a circle maker :-)
I read reviews that had me worried that Mark was going to lead us down a formulaic path of spiritualism that is far from scripture. Please ignore those reviews, this coming from a conservative Church of Christ'er. Mark is not suggesting circles are a formula that makes prayer magic any more than the book of James is suggesting that anointing with oil is the only way for healing prayers to be effective. Instead Mark is calling us to be prayer warriors who work hard as if it all depends on us, but at the same time pray as if it all depends on God. Mark believes in prayer and has experienced its power and he encourages the same from the reader. This book will be a blessing to anyone at any level in their prayer life.