Gernot Herbst received Dipl.-Ing. and Dr.-Ing. degrees in Electrical Engineering from Chemnitz University of Technology, Germany. He was a Scientific Assistant at Chemnitz University of Technology before joining Siemens AG as an R&D Engineer. Since 2021, he is Professor at the University of Applied Sciences Zwickau, Germany. His research interests revolve around bringing modern control into industrial practice, especially using ADRC, as well as modeling and control of power electronics systems.Rafal Madonski received a PhD in Automatic Control from Poznan University of Technology, Poland. He was a Postdoctoral Researcher in the School of Automation, Southeast University, China, and then an Associate Professor in the Energy and Electricity Research Center, Jinan University, China. He was also a visiting scholar at various scientific institutions, including the Center for Advanced Control Technologies at Cleveland State University, USA, and the Academy of Mathematics and Systems Science of the Chinese Academy of Sciences. Currently, he is associated with the Faculty of Automatic Control, Electronics and Computer Science, Silesian University of Technology in Gliwice, Poland. His research interests are the design, analysis, and application of ADRC.

• Part I: Foundations.- Prelude: A Fresh Look.- First Contact with ADRC.- Linear Active Disturbance Rejection Control.- Between Time and Frequency Domain.- Visual Tour.- Extensions and Modifications.- Interlude: A Look Around.- Part II: Going Practical.- Discrete-Time Linear ADRC.- Practical Aspects.- Software Implementation.- Application Examples.- Postlude: A Look Ahead.

Gernot Herbst received Dipl.-Ing. and Dr.-Ing. degrees in Electrical Engineering from Chemnitz University of Technology, Germany. He was a Scientific Assistant at Chemnitz University of Technology before joining Siemens AG as an R&D Engineer. Since 2021, he is Professor at the University of Applied Sciences Zwickau, Germany. His research interests revolve around bringing modern control into industrial practice, especially using ADRC, as well as modeling and control of power electronics systems.Rafal Madonski received a PhD in Automatic Control from Poznan University of Technology, Poland. He was a Postdoctoral Researcher in the School of Automation, Southeast University, China, and then an Associate Professor in the Energy and Electricity Research Center, Jinan University, China. He was also a visiting scholar at various scientific institutions, including the Center for Advanced Control Technologies at Cleveland State University, USA, and the Academy of Mathematics and Systems Science of the Chinese Academy of Sciences. Currently, he is associated with the Faculty of Automatic Control, Electronics and Computer Science, Silesian University of Technology in Gliwice, Poland. His research interests are the design, analysis, and application of ADRC.

• Part I: Foundations.- Prelude: A Fresh Look.- First Contact with ADRC.- Linear Active Disturbance Rejection Control.- Between Time and Frequency Domain.- Visual Tour.- Extensions and Modifications.- Interlude: A Look Around.- Part II: Going Practical.- Discrete-Time Linear ADRC.- Practical Aspects.- Software Implementation.- Application Examples.- Postlude: A Look Ahead.

Gernot Herbst received Dipl.-Ing. and Dr.-Ing. degrees in Electrical Engineering from Chemnitz University of Technology, Germany. He was a Scientific Assistant at Chemnitz University of Technology before joining Siemens AG as an R&D Engineer. Since 2021, he is Professor at the University of Applied Sciences Zwickau, Germany. His research interests revolve around bringing modern control into industrial practice, especially using ADRC, as well as modeling and control of power electronics systems.Rafal Madonski received a PhD in Automatic Control from Poznan University of Technology, Poland. He was a Postdoctoral Researcher in the School of Automation, Southeast University, China, and then an Associate Professor in the Energy and Electricity Research Center, Jinan University, China. He was also a visiting scholar at various scientific institutions, including the Center for Advanced Control Technologies at Cleveland State University, USA, and the Academy of Mathematics and Systems Science of the Chinese Academy of Sciences. Currently, he is associated with the Faculty of Automatic Control, Electronics and Computer Science, Silesian University of Technology in Gliwice, Poland. His research interests are the design, analysis, and application of ADRC.

• Part I: Foundations.- Prelude: A Fresh Look.- First Contact with ADRC.- Linear Active Disturbance Rejection Control.- Between Time and Frequency Domain.- Visual Tour.- Extensions and Modifications.- Interlude: A Look Around.- Part II: Going Practical.- Discrete-Time Linear ADRC.- Practical Aspects.- Software Implementation.- Application Examples.- Postlude: A Look Ahead.