> The book was printed with wide outer margins and very narrow inner margins. The typical rule is to have the inner margins that are half as wide as the outer

> The book was printed with wide outer margins and very narrow inner margins. The typical rule is to have the inner margins that are half as wide as the outer margins, so that the two inner margins, being adjacent, visually add up to the same space as one outer margin. This is complicated by the fact that the inside of the pages are folded and vanish in the binding. In a well typeset book, this is compensated for by adding a “binding correction” to the width of the inner margins. The result is very aesthetically pleasing. It sounds like with your edition the typesetting was done independent of the binding, and hence didn’t properly account for constraints.