Nicodemus Made Simple is a Bible-first walk through John 3, John 7, and John 19: the night visit, the new birth, the wind of the Spirit, the Son of Man lifted up, "God so loved the world," light and darkness, quiet courage in the council, costly devotion at the tomb, and the journey every believer takes from night to morning.
Explicitly Trinitarian: God the Father who so loved the world that He gave His only begotten Son; Jesus Christ — Son of God and Son of Man, Lord and Savior — who received the night visitor and was lifted up for sinners; and the Holy Spirit, who alone gives the new birth and true freedom, never by human willpower or man's method alone. Every prayer is to the Father, through Jesus Christ, by the Holy Spirit.
Read one chapter a day. Come honest. Read slowly. Be born again.