Fib is an experimental Western poetry form bearing similarities to haikuThat is, the classic fib and one version of the contemporary Western haiku both follow a strict structure. The classic fib, of course, is a six line, 20 syllable poem with a syllable count by line of 1/1/2/3/5/8, and the specific form of contemporary Western haiku uses three (or fewer) lines of no more than 17 syllables in total., but based on the Fibonacci sequence. The classic fib is a six line, 20 syllable poem, with as many syllables per line as the line's corresponding place in the Fibonnaci sequence.