For baseline Christianity (not Mormonism), there are a number of works giving a defense of the holy texts as being historically accurate. "Evidence That Demand

For baseline Christianity (not Mormonism), there are a number of works giving a defense of the holy texts as being historically accurate. "Evidence That Demands A Verdict" by Josh McDowell was a good one, but it is almost certainly out of date by now. "Cold Case Christianity" by J. Warner Wallace is a more recent one, but is far less comprehensive. From a philosophical perspective, "He Is There And He Is Not Silent" by Francis Schaeffer is solid. It's simple, but very deep.