Sahih al-Bukhani is the most widely recognized book among Muslims after the Quran. Curious readers of Bukhari's magnum opus are often left with burning questions that lie beyond its contents. Who was Imam Bukhari? How and why did he write the Sahih? How was it transmitted? Are there any reliable extant manuscripts of the work? In this introduction, Dr Mustafa al-Aʿzami answers these questions in a simple and accessible manner. This translation, alongside added annotations and appendices, presents and expands on al-A'zami's research for an English readership.