This book is a compilation of various works on prayer by A.W. Tozer. While not a how-to book, it has great words on why one must pray, the value of prayer, and the nature of prayer to name a few.
This would be a great devotional for those who want to strengthen their pray life or as a nice gift to a new believer who wants to understand prayer.
*I received this review copy in exchange for my honest review.