This is the monthly journal "Technical Engineer PE" published by the Japan Federation of Engineering Societies, covering the issues from January to December 2025. With a variety of articles written by technical engineers, it is widely recommended for those aiming to become technical engineers, those aiming for the comprehensive technical management division, and those seeking continuous professional development. It may also be useful for preparing for the oral examination of the second-stage technical engineer examination. The condition is quite clean, having been read only once. The list price is 1000 yen per issue. Please refrain from price negotiations. Thank you.