Master optical near fields, the key to light manipulation at the nanoscale. This introduction expertly bridges classical and quantum theories of electromagnetic phenomena, essential for breakthrough nanophotonics research. Understand how optical near fields overcome the diffraction limit, revolutionizing optical science and technology. Designed for students, engineers, and scientists, this text provides foundational knowledge in atom photonics and advanced physics. Unlock new possibilities in electromagnetic phenomena and drive innovation in photonics.