All Praise belongs to Allah Almighty, Creator of the worlds. Peace and salutations be upon the Prophet Muhammad, his family and all his Companions. The revivalist movement begun by Sheikh Muhammad bin Abdul Wahhab (1115AH - 1206AH / 1703AD - 1792AD) in the Arabian Peninsula was destined to take root and become widely accepted. It sowed the seeds for a wise leadership which pledged upon itself the implementation of Islamic Shariah in its totality, using the Book of Allah and the Sunnah to enlighten all its activities. It was honoured with victory and success from Allah, the Almighty, and so has remained a potent force since its inception two centuries ago, despite severely hostile attacks on both religious and political levels. The movement exceeded the boundaries of the Arabian Peninsula and bore fruit in a number of other countries in the hands of many sincere scholars and propagators of Islam who were inspired by its teachings and guided by its example. It was a blessed movement, like a good tree, the root of which is firm, and the branches of which stand tall in the sky. But like any reformatory movement, it too faced an onslaught of arrows, thrown both at the founder of the movement and at his beliefs and teachings. For a start, it was given the derogatory title of Wahhabism which, although unacceptable to its founder and followers, was nevertheless widely accepted and adopted. Worse still, the State was subjected to strong criticisms and dreadful slanders in the most vulgar language, which exposed the measure of animosity felt by its opponents. Such critical writings had a great appeal among those fond of innovations and superstitions, but a host of knowledgeable people from various Muslim countries stood up to refute each and every allegation, using convincing proofs and evidences, and fragmenting all the attacks into particles of scattered dust. As most of these writings, whether positive or hostile, are extant in Arabic works, it was felt that there was no need to repeat them here. So the author of this paper searched for other writings on the subject in English or Urdu, and chose a few of them to mention in this paper. He has endeavoured to refute all the doubts which were raised in the books in question in the light of the writings of Sheikh Muhammad bin Abdul Wahhab and all the scholars who defended him at home and abroad..