For non-technical managers and business managers, this book sets out to provide methods for evaluating, managing and troubleshooting projects of all sizes. Emphasis is on how managers can ensure that projects keep within timescales and budgetary constraints.
No other info I have ever obtained has so profoundly improved my ability to plan, manage, and deliver work in both my career and home life. It  informs and instructs on the key factors in successful project management- estimating,organizing/planning,tracking,resource allocation, and the human factors.