Simplify the following text for a Grade 10 native English-speaking person.
Original: Piper was catapulted onto the evangelical scene after the publication of his book Desiring God : Meditations of a Christian Hedonist ( 1986 ) and has continued to publish dozens of other books further articulating this theological perspective .
Simplified: Piper became popular when his book Desiring God : Meditations of a Christian Hedonist was published . He has written many books since .