vi. Printing and presentation of the books should be interesting and attractive.
vii. It should be free from typing mistakes.
viii. There should be diagrams and figures wherever necessary.
ix. The left hand, right hand, top and bottom margins should be appropriate. The spacing between lines and paragraphs should be appropriate.
x. The font size used for chapter title, sub-titles, footnotes and exercises should be suitable for the age group of students.
xi. Bibliography should be given correctly and according to the uniform system.
xii. The title page should give necessary information, i.e. suitable title, authors name, publishers name, place of publication and year of publication.