The book "Introduction to the analysis and design of fundamental electronic circuits" represents the second edition of the work of the same name, compared to which two new subchapters have been introduced. The first deals with the analysis of the differential amplifier stage, and the second presents the analysis of the main types of constant current source schemes. Also, chapter 3 (Field-effect transistors) has been completed with the distributed load type amplification stages, in the versions with the output from the drain, respectively from the source. Last but not least, typos were corrected and some figures and paragraphs from the first edition of the paper were revised.