Given the task definition and input, reply with output. In this task, we ask you to rewrite a sentence in simple English without changing its general meaning. Essentially, you want to make the sentence easier to read by using simpler words, utilizing more straightforward sentence structures, and omitting non-essential information etc.

A pen name ( " nom de plume " or " literary double " ) is a pseudonym ( or , in some cases , a variant form of a real name ) adopted by an author and printed on the title page or by-line of their works in place of their real name .

A pen name , also known as a pseudonym , is a name an author uses in the place of their real name , when they write and publish things .