Islam, is the Final and only remaining Authentic Version of the Same Eternal Message of all Prophets starting with Adam, including Noah, Abraham, Moses, Jesus;  ending with its final perfected form, as revealed through Prophet Muhammad (peace be upon them all). Islam addresses both the human intellect and soul. Its main ever-lasting proof is the Qur'an, the only book  preserved in its original Arabic text for more than 14 centuries. In terms of content, structure, and style, Qur'an proved to be inimitable by any human-being. Facts, notions, and prophecies therein have been confirmed by modern science and by the events of history. 
    You can start with "Discover Islam" Program, a four-module primer. More interesting details are presented in the: "Proving Islam" Program, as well as the concise outlines of Maurice Bucailles' "Qur'an and Modern Science", and Ahmad Deedat's "Miracle of Miracles". Those concerned with inter-faith studies can benefit from the "Comparative Religion" Program, outlined in "Islam: True Message of Moses and Jesus", and more detailed in "Muslim-Christian Dialogue." Allegations, common queries and misconceptions  regarding Islam are cleared in the "Plain Truth: Refuting Falsehood" section. Guidelines for practicing Islam, in different situations and aspects of life, can be sought in the "Muslim Way of Life" Program. To help Muslims to lead a charitable life and to foster social solidarity , a "Charity Guide" is  presented.