From “what is a Fib?”:
The Fibonacci poem is a 6-line short poetry form that is based on the structure of the Fibonacci sequence. For those unfamiliar with the Fibonacci Sequence, it is a mathematical sequence in which every figure is the sum of the two preceding it. Thus, you begin with 1 and the sequence follows as such: 1+1=2; then in turn 1+2=3; then 2+3=5; then 3+5=8 and so on. The poetry sequence therefore consists of six lines of 1, 1, 2, 3, 5, and 8, with each number representing the number of syllables that a writer places in each line of the poem. Initially poems were written with 6 lines, but now many poets experiment with poems that go well into higher digits, or with poems that are in reversed sequence. As a literary device, it is used as a formatted pattern in which one can offer meaning in any organized way, providing the number sequence remains the constancy of the form.
The subject of the Fibonacci poem has no restriction, but the difference between a good fib and a great fib is the poetic element that speaks to the reader. No longer just a fun form to write as a math student, the poets who write good Fibonacci poems have replaced the ‘geek’ with the poet.