I am an experienced lay Bible study teacher for adults. I am so tired of working with books with 10 DVD lessons or 10 chapters in a $5 book. I need more meat in my sandwich. The NIVAC is not technical and does not use Greek or Hebrew without explaining what it means. It is not a "Sermon in a box" commentary for pastors. It is a really good explanation of the value of each book and why we should study it..Each NIVAC book divides the Biblical book into practical sections and then 4 subsections for each sections. 1. The NIV text. 2. The "Original Meaning." 3. "Bridging Contexts" to help us understand what is in the section. 4. "Contemporary Significance" to help us understand the message for today. I love the Word Biblical Commentary, or Barclay or Wiersbe; but NIVAC is my go to series whether I am looking for a book for a teacher or a book for the whole class to buy.