Make academic knowledge in various ways. It might be common knowledge or specialized knowledge, such as reading books, manuals, handbooks, any other reading of the various assemblies, etc.
The knowledge of the technical aspects. It may be common knowledge Or specialized knowledge, such as reading books, textbooks various fields. Books in various fields and so on.
The knowledge of various academicMay is general or specialized knowledge, such as reading the various fields Handbook. Reading books in different fields Etc.