"Believing Christ" by Stephen E. Robinson is my all-time most favorite LDS book. This book helps a person to make sense of the Atonement of Christ. It's also a very useful book for anyone who is suffering from depression, because the book gives people hope.
Speeches and Articles that were preliminary to the book are found here:
https://speeches.byu.edu/talks/stephen- ... atonement/
https://www.lds.org/ensign/1992/04/beli ... t?lang=eng
Here is a link to the book itself:
http://files.dustinwoodard.net/document ... en%20E.pdf