WRITINGS II:Communicating by Electromagnetic Waves to 7G / Preventing Maladies / Quantum Physics Concepts is a blend of synthesis, analysis and originality covering theory and practice topics from science and engineering and placing them in the history of related events with helpful additions to grasp comprehensively the ideas. Based on a large number of sources of information, the book introduces in matters that are of great interest nowadays: communicating by electromagnetic waves to 7G, preventing maladies and quantum physics concepts. Penetrating at different depths in material or exploring its extensions, the book leads in the unusual worlds of physics, mathematics, astronomy, engineering and their research of challenging problems and unawares convinces the reader that those worlds are interesting and worth of study. Today the mankind social and economic improvement and advance are based more than ever on scientific research and on translating in practice old and new ideas for broad public benefit. With its presentation of themes in an easy to understand manner the book is a valuable source of knowledge for anybody interested. Irina Rabeja - MEE DCSc WorldWho'sWho