Paperback Book Day is a day to celebrate the paperback book. Paperback books are books that are made of paper, as opposed to hardcover books, which are made of cardboard. Paperback books are usually cheaper than hardcover books, and they are easier to carry around.
The first paperback book was published in 1931. It was a book of essays bySir Francis Bacon, and it was published by Penguin Books. Penguin was the first publishing company to print paperback books on a large scale.
Paperback books became very popular during World War II. They were easy to carry around, and they were cheaper than hardcover books. After the war, paperback books became even more popular.
Today, paperback books are still very popular. They are a great way to save money on books, and they are easy to carry around. So if you're looking for a day to celebrate the paperback book, look no further than Paperback Book Day!