James Engel and Wilbert Norton, What’s Gone Wrong With the Harvest?: A Communication Strategy for the Church and World Evangelism—Out of print. Available in serial format online.
Bruce Wilkinson, The Seven Laws of the Learner: How to Teach Almost Anything to Practically Anyone—Also a video series.
Peter Lord, The 2959 Plan
McDonough, Reginald M. Keys to Effective Motivation—Out of Print
Morgan, G. Campbell. The Great Physician; a series of fifty studies, the method of Jesus with individuals. London and Edinburgh: Marshall, Morgan, & Scott, 1937—Out of print, but available online for free here.