Starting the effort, my partners and I aimed to write a simple guide, with our students as the main recipients. A supplement to academic teaching, with a reference point of theory and practice.Seeing the completed work, with satisfaction, but not surprise, I realize that the resulting outcome exceeds its goal. My partners had contributions that were extensive in quantity, advanced in quality, and informative. I specifically mention the two youngest of the partners, as the other two (: Associate Professor Athanasios Zachariadis and scientific collaborator Ioannis Skordalos) are already well-known worthy scientists. Nikolaos Vasileiadis and Stefanos Tsakos are young individuals with uncommon training, scientific knowledge, and diligence. But more importantly, two young individuals with rare character and unwavering ethics. It is my duty to publicize my appreciation for this, along with the clarification that each person's contribution is clearly distinct and absolutely self-sufficient.