Allan Kardec e J. Herculano Pires destacam a importância de educar para a morte, relacionando-a ao sono e à aceitação da vida, visando a transcendência sem enfoque religioso.

The Superior Spirits who accompanied the elaboration of the works codified by Allan Kardec, thus manifested themselves regarding *The Gospel According to Spiritism*: “This book of doctrine will have considerable influence, because it explains matters of capital interest. Not only will the religious world find in it the maxims it needs, but nations, in their practical life, will draw excellent instructions from it.” In the words of the Codifier, “the instructions of the Spirits are truly the voices of Heaven that come to enlighten men and invite them to the practice of the Gospel.”

The Gospel According to Spiritism offers essential teachings, influencing both the religious world and the practical lives of nations, enlightening and inviting people to practice the values of the Gospel.

A little-known manual by Kardec, with 160 entries on Spiritism, dedicated to mediums and scholars, published in 1858 and rediscovered in 1923, with clear teaching methods and a synthesis of Spiritist nomenclature.

""Spiritual Journey in 1862" recounts Allan Kardec's journey through French cities, presiding over meetings and overcoming difficulties, accepting an invitation from the spiritualists of Lyon over a period of six weeks.

J. Herculano Pires criticizes Roustaing's "The Four Gospels," pointing out contradictory theories that weaken the Brazilian Spiritist Federation due to excessive religiosity and a lack of rational analysis.

""What is Spiritism?", by Allan Kardec, introduces the principles of Spiritism in a question-and-answer format, explaining philosophical, scientific, and religious foundations clearly for beginners and students alike.

The Book of Mediums, by Allan Kardec, explains the nature, practice, and development of mediumship, guiding its responsible use and offering rational explanations of spiritual phenomena.

This book complements "The Spirits' Book" with the practical part of the doctrine, elaborated and revised by the Spirits, with the 1862 edition considered definitive for this translation.

The book presents the complete Spiritist doctrine, revealing the nature of Spirits, the mysteries of life after death and its moral implications, showing that Spiritism is a serious and profound study.