Who is author of the book Aphorism?

There is no single author of a book titled "Aphorism." An aphorism is a concise, pointed, and often memorable statement that expresses a general truth or observation.

The word "aphorism" refers to a genre of writing, not a specific book. Many famous authors throughout history have written aphorisms, including:

* Ancient Greek: Socrates, Plato, Aristotle

* Roman: Seneca, Marcus Aurelius, Cicero

* Renaissance: Niccolò Machiavelli, Leonardo da Vinci

* 17th & 18th centuries: Francis Bacon, George Herbert, William Blake, Samuel Johnson

* 19th century: Arthur Schopenhauer, Friedrich Nietzsche, Mark Twain

* 20th & 21st centuries: Oscar Wilde, G.K. Chesterton, Winston Churchill, Maya Angelou, and many others.

So, if you are looking for a specific book of aphorisms, you would need to specify the author or the collection you are interested in.