Luis Rodi Maletich (Montevideo, Uruguay, 1968) is an International Master (FIDE, and also ICCF). He participated in two Olympiads representing his country (Baku 2016 and Batumi 2018). Luis lives in Londrina, Brazil, being a protagonist of the tournaments in that country, where he also works as a chess trainer. He is the author of numerous theoretical articles for American and European publications such as New in Chess (for the Yearbook) and Modern Chess. The present book on the Queen's Gambit Declined is his first work for Thinkers Publishing and certainly not his last.