Use a common typeface (Times New Roman or Arial work well). Nothing else should be used for your manuscript. Please keep in mind that your final book may have a different typeface. Some typefaces read better in book format than others.
In terms of page count, you need to consider how much space you will have available on each side of the page. You can write a book from 200 to 1,000 pages long; it all depends on what you want to tell the reader. For example, if you are writing a novel, then it should be at least 250 pages long. If you are writing a short story, then it could be as few as 20 pages long.
Your choice of binding (the way in which pages are joined together) determines how easy it will be to read and handle your book. There are two main types of binding: cloth and mass-market. With cloth bindings, the pages of the book are held together with leather or fabric ties; these can get quite tattered over time if you use up all the pages, so they aren't suitable for very old books. Mass-market books have plastic covers with adhesive backing, which means you can't change the order of the pages.
Cloth bindings were popular before mass-market books existed, but they are now used mostly for special editions or books that are sent to libraries and archives.
Make use of a standard typeface (Times New Roman or Arial) The non-serif typeface Arial is the most commonly used online font. They both perform admirably. It's best to use a typeface that is easy to read onscreen.
In addition to choosing a typeface, you will also need to choose a size. There are two main types of fonts: fixed width and proportional. Fixed-width fonts have characters of uniform width; for example, there are no smaller characters or lowercase letters. Proportional fonts appear to get bigger or smaller depending on how much space they take up on the page. For example, a small word like "the" can be drawn as an equal distance apart from another word like "can".
There are two main types of font sizes: point and pixel. Point sizes are measured in points. One point equals 1/72 of an inch. So, if you want your text to look exactly like the text in this sentence, then you should set your type at 72 points.
Pixel sizes are measured in pixels. One pixel is the smallest unit of display resolution. Most computers display text at 96 pixels per inch, which means that one row of text would be one inch high.
Your document should be typed on a regular sheet of paper (8.5 × 11 inches) in a common typeface like Times New Roman. Some teachers may want a specific typeface, however Times New Roman is the most often used. The whole text, including the header and bibliography, should be double-spaced. Use a horizontal rule under the header and another one below the reference list.
The body of your essay should begin on the first page with a clear title and abstract. It is important that you keep to these guidelines when writing your essay, as it does not do any harm to follow them.