Tajweed is the set of rules for adequate pronunciation of the Holy Quran. It is a guide that's help Muslims learn how to read and recite the Holy Quran Concerning the guidance as instructed by Allah. When you read the Holy Quran you try to read it in the best way you can. This hard work help you again Reward by Allah. It is important to know the Tajweed rules that will help the reciter learn and understand the Holy QQuran. Reading the holy Quran without the Tajweed rules and regulation may lead to change in the meaning of the Quranic words. The reciter should make sure he does't pronounce the words incorrectly or else,changing the Quranic Words may be sinful.