To better study Web copywriting, it is important to have easy access to the best electronic courses at all times. This free application is a dynamic library powered by the best French educational websites specialized in Electronics Courses. Courses on the following topics are present in our application: -The semiconductors - The operational amplifier - Analog filters - Supplement on the operational amplifier - Introduction to digital electronics - TTL-standard logic - Digital filtering - Analog to digital and digital to analog conversion - Difference Amplifier & Instrumentation Amplifier - Electrical metrology - Transmission line