As R. Edwards previously said, don't be put off by the Old English. Once you get over the initial shock you'll find the prayers rich and meaningful - seriously good meditation material. I find the book very helpful as I want to improve in my prayer life. Just the way these Puritans express themselves in prayer, showing depth of biblical understanding and applying God's truths to everyday life, it's really inspiring. If you want to be a 'prayer warrior' and shake the gates of heaven, as it were, this is NOT a manual. Nevertheless, there's much to learn from this book.