Besides Sheikh Yusuf's trial, I advise you to refer to the diaries of the missionary priests who were sent by Europe to head missionaries in Africa, Indonesia and the South East of Asia to call people there for Christianity. However, they returned to Europe embraced Islam, and wrote in their diaries that were translated into many languages issued in many booklets, they said: "We were calling people to embrace Christianity. To do this we used weak words, expressions and proofs. Deep in our conscience we were not convinced of this. Then, we met Muslim children that answer our words back in a spontaneous and simple way without knowing that they were retorting with a crystal clear proof and a strong evidence that show beyond any doubt that Islam is the true religion"… These diaries are available in various languages in the Islamic centers all over the European capitals as well as in the America's You can ask for copies from the propagation centers in the Saudi Arabia in the following  addresses: