This document provides an overview of the sciences related to the Qur'an, including its revelation, collection, abrogating and abrogated verses, clear and unclear verses, writing, and translation. It discusses how the Qur'an was revealed to Prophet Muhammad over 23 years, first in Makkah and later in Madinah. It describes the process of collecting the Qur'an during the times of Abu Bakr and Uthman to compile it into its final written form. The document also explains concepts like Makki and Madani verses based on where they were revealed, and abrogating verses that replaced previous rulings. In 3 sentences: This document discusses the various sciences related to studying the