Aspectos teóricos y prácticos de su ejercicio profesional) is a 1996 book written by Ismael Moreno Pino, a former ambassador of Mexico and undersecretary of foreign affairs, who was active in promoting nuclear disarmament during the Cold War.

Due to its content, it can be divided into four parts: In his book, Moreno Pino dedicates an entire section[1] to the response of the diplomatic corps accredited in Mexico to the Ten Tragic Days, a military coup d'état that occurred during one of the most violent period of the Mexican Revolution.

The coup overthrew the first democratically elected government in Mexico's history, headed by president Francisco I. Madero and vice-president José María Pino Suárez, the author's grandfather.

Once the Madero administration was overthrown by the military, Márquez Sterling tried to ensure that the new de facto government, headed by Victoriano Huerta, granted safe conduct to the deposed leaders so they could leave the country.

He also examines the conduct of Pedro Lascurain, the foreign secretary, who treasoned Madero and Pino Suárez by handing their resignations over to Huerta before both men were safe and sound.

Reflecting on this, Moreno Pino concludes that:"In this narrative, we have seen a foreign secretary too weak in his convictions, unable to give things their proper value, indecisive and misguided — if not altogerher malevolent — in his actions.

– José Luis Siqueiros Prieto, attorney-at-Law, founding partner of Hogan Lovells BSTL and former chair of the Inter-American Judicial Committee of the Organization of American States.

The daily work of the current diplomat has made it possible to consolidate these advances and expand the opportunities and quality of life of all peoples through cooperation mechanisms, agreements and international treaties.