Explanation of important Lessons is the good book that highlights the key features of Prayer and supplication and their importance in our daily routine life. Indeed, all praise is for Allah, we praise Him, repent to Him, and seek His forgiveness and help. We seek refuge in Allah from the evil of our own selves and our wicked deeds. Whomsoever Allah guides, none can lead astray; and whomsoever Allah leaves astray, none can guide. And I bear witness that none has the right to be worshipped except Allah alone, and He has no partner; and I bear witness that our Prophet Muhammad is His servant and Messenger. May Allah, send peace and blessings upon him, his family and his Companions until the Day of Judgment. Indeed Allah Almighty has protected this religion and raised its status among the nations, sending to the world the final Messenger, Muhammad , and with him the final and most complete religion - as Allah Almighty says: This day, I have perfected your religion for you, completed My favor upon you, and have chosen for you Islam as your religion .Allah Almighty has made the scholars inheritors of the Prophets; they explain to the people their religious duties and they enlighten them, so that their worship of Allah Almighty is based on knowledge and insight. One such scholar, whom the Muslims recently lost, is the noble Shaikh and Imam, `Abdul-`Aziz bin `Abdullah bin Baz - may Allah Almighty have mercy on him, for he spent his life in knowledge, in teaching, in passing scholarly judgments and rulings. But over and above his knowledge, he was a man who was righteous and pious; he sought little from this world, and his manners were truly noble. From the many works in which the Shaikh served the different branches of Islamic knowledge - `Aqidah, Fiqh, Hadith, Da`wah, and so on - is this very important work, `Important Lessons for Every Muslim. So this book is important and necessary for every Muslim, everyone should to read this book in order to attain the internal satisfaction and religious mannerism.