Danerous Praers 50 Powerful Prayers that changed the world

I was given a copy of this book to provide my honest feedback
Learn from the brave ones who have gone before you with Dangerous Prayers, an inspiring collection of prayers from people who have changed the world. Exploring historical figures, cultural icons, political leaders, saints, and martyrs, this book offers you a rich visual experience to explore the power of dynamic prayers.
From St. Francis of Assisi to Harriett Tubman to Billy Graham, God can use ordinary people who pray courageous prayers to do extraordinary things for Him. No matter your age, position, or status, praying dangerous prayers will change your life—and likely the world around you as well.
Gain wisdom from the prayer lives of spiritual giants and invigorate your faith as you consider those who came before you with Dangerous Prayers.

I was not overly impressed with this book.  So here is the layout:
1-2 pages about a certain historical person
and then a short prayer that they said.
The reason I'm not that impressed is the biography part is stuff you can find for free on the web.  As for the prayers, I feel like the title was very misleading.  For example, Helen Keller's prayer.  It wasn't even a prayer I was just a quote from her saying things she prays about.  I felt let down by a lot of the so called "Dangerous Prayers that changed the world" portrayed in this book. In my personal opinion save your money.