This book provides a detailed plan for determining the feaibility of retiring at a particular age, given the composition of your assets, the retirement vehicles that are avaialble to you, and the monthly expenses that you need to cover during retirement. Identification of all sources of current/retirement revenue, all sources of current/retirement expenses, and the effect of a discreet number of variables that will Affect your retirement in the future, are all discussed in detail. At any particular time (pre- or post-retirement), this book amkes you aware of your monthly cash flow, and how all of the above cumulatively affect your "Assets Remaining" - the amount of your investment assets (retirement accounts and other investments) remaining at the end of every year. Whether you have a defined pension plan, a contributory pension plan, or just Social Security, this book will provide valuable information for determining the age that you can truly retire at, and if/when your Assets Remaining will run out. Although all principles outlined in this book can be implemented with paper and pencil (or your favorite spreadsheet), the author describes a companion Retirement Calculator software product that can be purchased separately, that assists with all the book's described calculations.