That in fact, the publishing process -- just because of the fact that it's complicated, it's heavy, books are expensive -- creates a sort of a wall between authors of books and the ultimate users of books, be they teachers, students or just general readers.
実際 出版過程というのは とても複雑であるが故に 本は重く 高価にならざるを得ず ある種の壁を 著者と本の利用者