I love this article by Elder Dallin H. Oaks from the January 2011 Ensign. It just explains the basics so well!
1 We maintain that the three members of the Godhead are three separate and distinct beings and that God the Father is not a spirit but a glorified Being with a tangible body, as is His resurrected Son, Jesus Christ. Though separate in identity, They are one in purpose.
2 Our theology affirms that this mortal life has a purpose. And it teaches that our highest aspiration is to become like our heavenly parents, which will empower us to perpetuate our family relationships throughout eternity.
3 We seek knowledge in the material dimension by scientific inquiry and in the spiritual dimension by revelation. Revelation is God’s communication to man—to prophets and to every one of us if we seek it.