Publisher's Synopsis
PMThe Mental Efficiency Series Comprises Ten Titles Including: Personality, How To Build It; Common Sense, How To Exercise It; Practicality, How To Acquire It; Timidity, How To Overcome It; Poise, How To Attain It; Character,How To Strengthen It; Opportunities,How To Make The Most Of Them; Influence,How To Exert It; Speech, How To Use It Effectively; And Perseverance, How To Develop I