Mgr Coonan’s text is really a primer on Muslim belief and practice; it clearly notes the main differences between Christian and Muslim teaching (on the divinity of Jesus Christ and the nature of God, for instance) but does not explain why one might prefer one to the other, nor about different branches and styles of Islam.
William Burridge’s Our Muslim Neighbours adapts some of Coonan’s material. He gives a notably sympathetic account of the social reality of Islam, and portrays (for example) the place of women in Islam in a wholly positive light. He briefly discusses differences within Islam.
Neither of these texts criticises Islam, nor makes any apologetic effort on behalf of Christianity.
Our third text is more constructive. John Wijngaards, a well-known Scripture scholar, addresses head-on the common Muslim allegation that the Gospels have been deliberately altered to conceal the true nature of Jesus. He gives a clear and patient argument for the authenticity of the Gospel text.