The base paper for drawing comics and "comic base paper" are not the same concept, so it can't be said to be a piece of paper. The base paper for drawing cartoons refers to the paper used for sketching and tracing lines, and any paper can be used. Usually, two or three cartoons are used. "Comic manuscript paper" is a commodity, which is specially used as the paper of comic manuscript. Usually, in order to unify the submission standards, contributors are required to use this paper when submitting comic contest. Therefore, the base paper used for drawing cartoons can be "comic base paper" or other paper.
What you found in the book is the "comic paper" as a commodity, and the actual author can choose not to use it unless he will use it according to the specified requirements when submitting the manuscript. Most comic writers are not used to using this kind of paper.
A piece of paper containing two pages is a spread. In this case, a paper twice as large as usual will be used for drawing. A page is a content page. For example, if an author is used to drawing a content page with A3 paper, he often chooses horizontal A2 paper when drawing a spread.
Cartoonists all over the world choose paper according to their own preferences, but only a few are used to using the original paper. Cartoonists in the old days of China (5 155 project or earlier) accounted for a large proportion. The proportion of new cartoonists in China and cartoonists in other countries who choose commercial manuscript paper is very low.
The finished cartoon will go through several steps before it is made into a finished product, instead of drawing it into a finished product at one time, so the previous sketch will be left behind. The common process generally has three pieces of paper, sketch, pencil drawing and line drawing. If the later stage is completed on paper, there will be four pieces of paper in the later stage, so a large number of sketches will be preserved. Of course, there are also some sketches on the market that are pirated and are casually drawn by others. ...