The value averaging method, authored by Michael Edleson, has been successfully used in the West for over 30 years, but is practically unknown in Russia. Meanwhile, this strategy, combining two methods that were previously used separately from each other: averaging costs and rebalancing the portfolio, can significantly increase the return on investment. And the book you hold is a comprehensive guide to putting this powerful strategy into practice. Edleson's book will also be useful as an introduction to investment activities, as it sets out in an accessible form the basic ideas of correct investments, and also provides and explains a mathematical apparatus for calculating (and evaluating) returns, risks and methods of managing them.