This Modest Book, Which Fits In A Pocket Or Purse, Introduces The Reader To The Rambam's 13 Principles Of Emuna, The Timeless Foundations Of Jewish Faith, In A Clear And Comprehensible Fashion. It Enables Anyone Between The Ages Of 12-120 To Internalize These Principles And Apply Them To Daily Living, Thereby Enhancing One's Positive Outlook, Inner Peace And Ability To Live A Meaningful Life.