Introduction This article covers the concept of Fibonacci series. A very popular algorithm in Computer Science. We would be implementing the theory practically in the C programming language. Italian Mathematician, Fibonacci. What is the Fibonacci Series? The Fibonacci series is a unique set of series whereby the following term is always equal to the sum of the previous two terms. We could reframe this explanation in another perspective. We could refer to these series as a growing array or set of numbers where the previous sum of two terms is the determinant of the next term.