There is a big difference in art style between manga, which are more stylized (exaggerated), and American comics, which tend to be more "realistic". There are also profound differences between these two types of comics. Some of the differences, but not limited to, are price, creativity, audiences, different genres, width, and even size. You can also create your own manga collection(also known as collection de mangas in the French language)via searching online.
The creation and presentation of manga are very different from American comics. The manga is printed in black and white, while the American comics are mostly in color. Also, if you watch graphic novels or manga, you will notice the size difference. Manga is often smaller than traditional American comics, and are usually about half and one-third the size of American comics. But while American comics are usually as thin as mini magazines, at around 32 pages long, manga comics are thick and can be hundreds of pages long!
In terms of page count, manga is very similar to graphic novels, which are often just a collection of American comics today. But unlike American graphic novels, which are usually just monthly collections of comics in one story or a rainbow, manga plots are often part of a larger story, and entire manga stories can span thousands of pages.
Another difference between traditional American comics is that American comics are often created in a certain way on an assembly line. You have a writer (narration), a pencil (first sketch), ink (using a fountain pen on the drawing), an engraver (adding dialogue), and a crayon (coloring the drawing with ink). Most manga books are the work of a creator that brings together all of these commitments (except for coloring).
Also, manga works usually move faster. Due to a large number of pages, you are reading manga books at an accelerated pace. Manga books always have fewer panels and less dialogue (mixing) per page than American comics.