The textbooks are the fundamentality of teaching and an excellent textbook may be favor for several generation in university. Based on writing of "Structure and Properties of Polymers

Updated Edition"

four fundamentals of writing textbook were proposed

i. e. textbook author should take teaching research deeply

do own scientific research in the field

pay attention to science research results did by the native scientists

and writing the textbook unremittingly and continuously. Several problems in writing textbook were discussed as well.