Joseph Fielding Smith, Jr. was the tenth president of The Church of Jesus Christ of Latter-day Saints (LDS Church) from 1970 until his death. He was the son of Joseph F. Smith, who was the sixth president of the LDS Church. His grandfather was Hyrum Smith, brother of LDS Church founder Joseph Smith, Jr., who was Joseph Fielding's great-uncle.
This is book is a series of radio address that Joseph Fielding Smith gave, in 1944. It is a concise, but detailed presentation of the basic doctrines of the gospel. President Smith is easy to understand, and you come away from this book with a greater and deeper understanding of the gospel principles, because he speaks in such easy to understand terms. And excellent resource book. Highly reccommended.