Find out why so many people enjoy Dave Earley’s writing with The 21 Most Effective Prayers Collection. Dave wrote The 21 Most Effective Prayers of the Bible in 2005—and produced four follow-up books in a series that has sold more than a quarter million copies. Now, all five books are available in an omnibus edition: The 21 Most Effective Prayers of the Bible, The 21 Most Encouraging Promises of the Bible, The 21 Most Dangerous Questions of the Bible, 21 Reasons Bad Things Happen to Good People, and The 21 Most Amazing Truths about Heaven. Always personable and readable, Dave Earley’s books provide encouragement and hope for Christians of all ages and backgrounds.