Printing pages for book interiors is an important aspect of the book publishing process. The paper stock used for printing pages can have a significant impact on the overall quality of the finished book, as it affects factors such as readability, durability, and aesthetics. When it comes to printing book interiors, there are several paper options to choose from, including 75 gsm white paper, 70 gsm cream paper, and 90 gsm glossy paper.