This is book IV of D. N. McHardy's "Live Successfully!" series. Focusing on memory, concentration, and habit, it has chapters on such subjects as using habit for self-betterment, improving attention, and harnessing your imagination. This volume will appeal to those with an interest in vintage self-help books, and it would make for a charming addition to any collection. Contents include: "What Mental Efficiency Means to You", "How Habit can Help You", "How to Use Imagination", "The Way to Increase Will-Power", "Improving Concentration and Attention", "How to Improve Your Memory", and "What the Next Book Tells You". Many vintage books such as this are becoming increasingly scarce and expensive. It is with this in mind that we are republishing this volume now in a modern, high-quality edition complete with the original text and artwork.