I use Warren Wiersbe's commentaries as a standard for my personal and group Bible study. His writing style is clear and concise and very easy to understand. I also like the fact that he does not interject a lot of personal opinion. Using the Be series along with my study Bible has improved my knowledge and application of God's Word and that is my goal. I also find it helpful that Christianbooks has the entire Be series available (unlike local book stores) at a cost that is very reasonable.