There is so much to love about this book: 1. It's a quick read. You can read a chapter in 5-10 minutes. 2. It explains profound ideas in simple accessible language. 3. It has something for everyone - for the new believer it would be essential things to know that they didn't, and for the lifelong Christian it puts together and reveals many beliefs and ideas that they've always held but never thought much of. 4. It encourages deeper study. It gives you a lay of the land, and prods you to dig deeper in further study. It draws you into theology. 5. It can be used as a devotional.