ISBN 979-8-2276-2741-4
This book is a reading of the Gospel of John according to Christian beliefs. The text is written in updated language. The illustrations are by the French painter James Tissot. It includes a glossary of key words to help "decode" the Gospel of John.

To read The Gospel According to Christianity, it is important to understand that we believe Jesus of Nazareth is the Christ, the Messiah, the Divine Son incarnate. As the Divine Son, who has always existed—even before the creation of the world—He has always been part of the community of the three divine persons in one God: the person of the Divine Father, the person of the Divine Son, and the person of the Divine Holy Spirit.

The Divine Son became incarnate through the work of the Divine Holy Spirit and was conceived by the human person of the virgin Mary of Nazareth. At eight days old, He was named Jesus on January 1 of the year zero, according to the extrapolated calculation of the Gregorian calendar.

The incarnate Divine Son was killed, buried, and rose from the dead on Sunday, April 3, in the year 33, based on the extrapolated calculation of the Gregorian calendar.

Christ is the redeemer of humanity; He is the light of the world that dispels the darkness of evil. Christ is the only way to the Divine Father. His words are the truth and grant the fullness of life in eternity.

ISBN 979-8-2279-5187-8
Topics on people and process management. Tools for organization, planning, execution, and control. Accounts from a 32-year professional career in high-tech product businesses.

ISBN 979-8-2240-0634-2
The motivation for writing this book lies in the interest in both topics: Chess and Mathematics. When analyzing chess positions, the following parameters are usually considered: Type of game (Open/Closed), Time, Space, Material, Pawn Structure, and King Safety.
How can we use mathematics to evaluate Chess Openings? In the examples provided here, we assess the openings based on Central Control, considering the Position and Mobility of the pieces.

ISBN 979-8-2272-8613-0
To understand Divinity, we can use the analogy of electricity.
Both are invisible, yet we can feel their effects.

For Christians:

• The Divine Father is the source of gifts.

• The Divine Holy Spirit is the bearer of gifts flowing from the source.

• The Divine Son is the sole interface between the divine and the human, the only conductor that carries the bearer of gifts from the source to humanity.

• A human being can be a recipient of these gifts, if, by their own free will, they choose to accept or reject the gifts bestowed upon them by Divinity.

Divinity, in analogy with electricity, is a simple circuit with a source, a conductor, and a current. Humanity represents the resistance to the flow of the divine current.

ISBN 979-8-2308-9396-7
I enjoy history, genealogy, legends, and curiosities. Upon discovering that I am the 26th descendant of El Cid, I decided to research and gather information about this historical and legendary Spanish figure.
Rodrigo Díaz de Vivar, known as El Cid Campeador, was born in 1049 in Vivar, Burgos, Spain, and passed away on July 10, 1099, in Valencia, Spain.
The biography and genealogy of Rodrigo Díaz de Vivar, El Cid, pose special challenges for historians because Rodrigo Díaz was quickly elevated to the status of a national hero of Castile, surrounded by many legends.

ISBN 979-8-2276-1012-6
Dear reader, I will share with you some stories from the time I lived in the frosh lair. The arrival, meeting other 'animals', the gatherings, the beginning of new friendships, studying for exams, the long series of exercises, moments of fun at the campus cinema, in the Chess room, playing Go, at the pool table, in the TV room, in the photography lab, in guitar lessons, swimming, soccer, watching table tennis matches played by brilliant Oriental colleagues, running, books from the academic center library, listening to Eldorado radio, visiting the chapel, attending the theoretical and practical CPOR classes, the two marches, outings in the city and surrounding areas, trips to the cafeteria, the bookstore, the school fund, the academic center, the radio station, the barbecue restaurants along the road, the theft of our flag, the self-sustaining generators after our speaker wires were cut, the velva, the altimeter, the mandatory second-chance exams, and many other stories.

ISBN 979-8-2300-1298-6
A book that helps children develop logical thinking, fostering essential skills to solve problems in a clear and organized way. The book starts with simple and concrete concepts, such as distinguishing facts from assumptions, recognizing patterns, and organizing ideas. As they progress, children are introduced to more complex logical challenges, learning to make comparisons, identify cause and effect, and solve multi-step problems.

The book covers both deductive and inductive reasoning skills, guiding children to understand how decisions influence outcomes. It introduces logical mathematics and the use of algorithms. Written in accessible language, it features exercises that stimulate logical reasoning in a fun and progressive manner.

ISBN 979-8-2278-2008-2
This book covers topics on the tradition and practice of meditation within the Christian context.
Maranatha, which means "Come, Lord," is the suggested mantra for this silent prayer.
It is an invitation for the Divine Spirit to flood the meditator's heart.
Remember, the Holy Spirit is free and moves wherever and however it wills...

ISBN 979-8-2275-5933-3
This book studies how those who believe in Reincarnation or Resurrection align at each step of the journey from this life to the destination.

ISBN 979-8-2274-0414-5
The purpose of the sales engineering group is: "Maximize profitable business for our clients, our company, and our employees!" The vision for the future has six aspects: our clients, our processes, our solutions, our company, our employees, and our team. There are three main objectives. For our clients: "sleep in peace, satisfied." For our company: "integration between teams." For our group: "focused teams." And what differentiates our company from competitors? Each individual!!! What are the fundamentals of sales engineering activity? How can we annually improve the organization of resources, planning, execution, and control of the activity? The author has spent 32 years navigating the "rocky road" of this very rewarding but also very stressful activity and shares his learnings in this book.

ISBN 979-8-2249-0072-5
The period from 70 BC to 70 AD has a controversial chronology with historical errors.
This is a book for those who enjoy History and historians, such as Flavius Josephus.
A book that brings the main characters of the period from -70 to +70: Augustus, Tiberius, Herod, Christ.
A book that studies the chronology of Christ's birth based on the Gospels, the historical records of Herod's death, the seismic events in the year of Jesus' death, and synchronizes these events with the Gregorian calendar (which indeed has a year zero!) based on the service schedule of the priestly classes at the Temple, revealed in the Qumran scrolls, knowing that the class of Abijah was on duty in the year -2 and that the class of Jehoiarib was on duty in the year +70.

ISBN 979-8-2277-7176-6
Sunday, April 3, 33, in the Gregorian calendar, was the day Jesus Christ rose from the dead. It was the third day since His crucifixion on Friday. After the book Year Zero – Christmas One proved that our current Gregorian calendar is correct and that Jesus was born on December 25, 1 BC, this book confirms the date of Christ's resurrection as April 3, 33 AD, when He was just over 33 years old. This book focuses on the event of this Sunday following the full moon after the March equinox. The event was preceded by a lunar eclipse, accompanied by an earthquake, and is supported by biblical and historical records, as well as the millennia-old tradition of celebrating the Friday of the crucifixion and the Sunday of the resurrection.

When was Jesus Christ born? Why did Herod I not die in 4 BC but rather in 1 AD? When was Jesus Christ crucified, and when did He rise again? The chronological research is based on the historical records of Josephus, the Qumran manuscripts, biblical accounts, astronomical data, and seismic records.

ISBN 979-8-2243-6583-8
The narrative is fictional, but the chronological research is true. The story tells, in a light and enjoyable way, the adventure of Aline, Enrico, and Júlia, high school students, who, with the help of their advisor Gaspen, successfully complete their mission to present the results of their research at the end of the school year. Their research proves that, by the end of year zero of the current calendar, Christ had completed one year of life. They received crucial support from the researcher João Carlos, who uncovered the path to understanding.

By studying fragments of the Qumran manuscripts, he discovered that the Jewish sect of the Qumran community used their own solar calendar, with 7 days per week, 52 weeks per year, totaling 364 days in the year, but with the start of each year synchronized with an annual astronomical event, so it never lagged behind.

Décio Martins de Medeiros is an electronics engineer, graduated from the Instituto Tecnológico de Aeronáutica (ITA) in 1975, with a professional career spanning 32 years, from 1977 to 2009, at Hewlett Packard/Agilent Technologies in Brazil. There, he worked in the technical sales area of instruments and test and measurement systems and held leadership positions, including that of CEO. Throughout his career, he stood out for his excellence in sales, market strategies, and team building, being a member of two President's Clubs in recognition of his performance.

With values deeply rooted in reliability and honesty, the author combines his analytical and creative skills to explore a wide range of interests, such as chess, genealogy, theology, poetry, management, and more. He writes articles for the blog Prazer Compartilhar and publishes books on various self-publishing platforms, with titles available at online bookstores such as Clube de Autores, Amazon, Apple Books, Kobo, Google Play, Barnes & Noble, and others.

Gmail: autordeciomartinsdemedeiros