This book teaches what every Christian, as a child of God, should believe and how every Christian, as a child of God, should live. The word "catechism" means instruction. This little book instructs in such a short and simple manner that even a child can easily understand. Dr. Martin Luther, the great Reformer of the Church, published this book to benefit the adults and the children who are most in need of such teaching. Luther doesn't write his own views and principles but the words of God for the betterment of humans. It does not teach all the doctrines of God's Word, but those that every Christian must know to believe rightly and lead a religious life in a short form, using plain and straightforward words.

Martin Luther (1483–1546) was a seminal figure in the Protestant Reformation, an intellectual movement that forever transformed Christianity and Western civilization. An Augustinian monk, theologian, and university professor at Wittenberg, Luther's actions and writings catalyzed religious reforms. His disputation against the sale of indulgences, famously epitomized in his '95 Theses,' challenged the authority of the Catholic Church and sparked widespread theological debate. Luther's translation of the Bible into the vernacular made the scriptures accessible to the laity, fostering a new relationship between believers and the Word of God. Evident in works such as 'Lessons in the Small Catechism of Dr. Martin Luther,' his literary style combined a pastor's care for the layperson with the rigor of a scholar. The Small Catechism itself distilled complex theology into accessible teachings, confirming Luther's commitment to education and the empowerment of ordinary Christians. The ripple effects of Luther's theology were immense, influencing not only religious institutions but also shaping the course of politics, economics, and education in Europe. Luther's enduring legacy can be seen in the Lutheran denomination, which bears his name, and in the broader Protestant tradition to which he significantly contributed.