A good habit
I recently heard C.J. Mahaney describe one of his habits in preparing to preach. After studying the text, praying, and constructing the sermon, on the Saturday night before he is to preach, he makes a habit of reading Charles Spurgeon's sermon on that particular text in order that his own spirit might receive life through that passage in preparation to offer that grace to others the next day.
From my exposure to Spurgeon, I can't imagine that anyone who made such a habit would fail to learn how to preach well from one of the most capable and faithful English-speaking preachers.
For that matter, if a parent wants to learn how to interpret the Scriptures to children, to make it accessible, and to make Christ and the Gospel central, reading Spurgeon on any text that you're going to unfold is a great way to learn from a great model.