YOG logo.Designed by a professional creative company, the logo incorporates a red flame (representing the passion to learn and the power of positive thinking), a purple star (excellence and the pride of representing one's nation) and a crescent (dynamic youth, full of promise).
3 Other Olympic Logo/s :

BARCELONA olympic logo(1992)The official emblem, designed by Josep Maria Trias from Barcelona, depicted a dynamic human figure in a stance that suggested someone jumping an obstacle (which consisted of the five Olympic rings) and the simple, gestual lines reduced the characterisation of the figure to the head (in the blue of the Mediterranean), the arms (the yellow of the sun and wide open in sign of hospitality) and the legs(a vivid red).

LOS ANGELES olympic logo(1932)It is composed of the American flag presented in the form of arms, accompanied, in the foreground, by the Olympic rings, the Olympic motto "Citius, Altius, Fortius" (faster, higher, stronger) and a laurel branch, symbol of victory.
It is composed of the Olympic rings superimposed on the emblem of the Japanese national flag, representing the rising sun. Having examined a large number of proposals, the Games Organising Committee chose the design submitted by Yusaku Kamekura which was subsequently accepted as the official emblem of the Games.
http://www.olympic.org/uk/games/past/collector_uk.asp?type=5&id=19&OLGT=1&OLGY=1964
Nuramalina(18)