God is Love - Conflict of the Ages Series

The 5 books written by Mrs. E.G. White known as the "Conflict of the Ages" series are:
1) Patriarchs & Prophets
2) Prophets & Kings
3) Desire of Ages
4) Acts of the Apostles
5) The Great Controversy

The first 3 words on page 1 of the first book are "God is Love". Patriarchs & Prophets 
The last 3 words at the end of the last book are "God is Love". The Great Controversy

....for God is love.

1 John 4:8