The present world is stepping towards an information era and everything is getting digitized so rapidly. When considering writing, books and notes are printed in digital format as PDFs and the practice of writing notes is becoming obsolete.
Personally speaking, I still enjoy keeping tidy notes during studies and here they are, so everyone can read them. Currently, there are notes on subjects in Computer Science, Electronics, Mathematics, Mechanical Engineering, Management and Humanities. Hope these will help you with your studies.
Please feel free to leave your thoughts under comments. Enjoy my notes and happy reading…!