The Pleasures of God: Meditations on God's Delight in Being God by John
God is the happiest being in the universe. To know him in his pleasures is to see him as he truly is. This is the proposition put forward by John Piper.
The things that make God glad are the measures of his greatness. John here studies 10 ways which God reveals gives him pleasure.
John Piper was reading through a classic book that was instrumental in the conversions of Charles Wesley and George Whitefield when he came across a key that was to turn his life upside down. He read 'The worth and excellency of a soul is to be measured by the object of its love.'