What is an Acrostic Poem? A poem or series of lines in which letters of each line, form a name, word or phrase or a regular sequence of letters of the alphabet. For example: Some Never Armor Killing Each other The first letters of the poem spell out the word “snake.” When we talk about poetry, we often think that it should be rhymed. In fact, there are many styles of poetry that are very different from each other. Acrostic poem is one of them. It is a unique poem, which do not necessarily have to rhyme. History The earliest examples of acrostics can be found in the Hebrew Bible. They were also used in Ancient Greece and medieval Europe. Often acrostics are used to convey a secret message.