The Pistachio Theory is a philosophical and scientific work that has found wide popularity. The book challenges conventional thinking and encourages readers to explore the many complex ideas and perceptions of human behavior.
The book is recommended reading for those who are interested in psychology and the science of human behavior, and seek to understand human behavior and interactions in a greater and deeper way.

Fahd Amer Al-Ahmadi, who was born on April 7, 1966 in Medina, is a Saudi writer, traveler, media activist, and author. He is best known for his articles that were published regularly in Saudi newspapers, as his articles appeared in the last pages of Al-Madina newspaper from 1991 to 2000, Al-Riyadh newspaper from 2000 to 2019, and Al-Iqtisadiah newspaper in 2020.

Fahad Amer Al-Ahmadi is a record holder in the continuous publication of articles, as he began publishing his articles since 1991 without interruption, and the number of articles he published reached 9,520 articles until March 2019. He is also considered one of the highest paid journalism writers in Saudi Arabia, as his salary reached 56 thousand riyals before he resigned from Al-Riyadh newspaper at the beginning of 2020.

Fahad Amer Al-Ahmadi is also considered one of the leading hosts of Arabic content, with his articles the size of about 50 PhD theses.

His great contributions in the field of writing and journalism made him a prominent figure in the Saudi media.