Why doesn't God heal amputees? Where is Purgatory in the Bible? Why does the Catholic Church oppose in-vitro fertilization? Catholics were once labeled "mackerel snappers" because of their regular consumption of fish on Fridays. Abstinence from meat is just one of many often misunderstood Catholic teachings. Rather than shy from that old derogatory nickname, this book claims it as a badge of pride as it explains and defends the teachings of God's one, true Church. Section one explores faith and reason, identifying some of the key barriers to passing on the faith. Section two discusses authority, including proofs for the existence of God, the divinity of Christ and the establishment of the Catholic Church as God's instrument of grace and truth. From there, the remaining sections examine specific doctrines and practices of the Church, answering typical challenges that Catholics might encounter. Each chapter is concluded with a bullet-point summary. Mackerel Snappers uses personal anecdotes, as well as irrefutable scriptural and logical reasoning, to help readers grasp and explain even the most difficult teachings. In addition, chapters are written to refute the arguments of other groups, such as atheists, Jehovah's Witnesses and Mormons, who regularly attempt to evangelize Catholics. Readers will find the systematic explanations invaluable in their own defense and practice of the faith.