What Saints have given guided written meditations? Recently I have found meditations by St. Francis de Sales in his Introduction to the Devout life, and St Ignatius Loyola in his Spiritual Exercises, that I find have helped to deepen my faith.  Are there any other guided written meditations by other Saints?  I am looking for something more in depth than a paragraph meditation, on that really helps you to meditate on the deeper meaning.
The first book which comes in my mind at reading your question is "The Practice of the Love of Jesus Christ" of St. Alphonse de Liguori, that I highly recommand. The thoughts St Alphonse provide really deeps the faith. Furthermore, St Alphonse de Liguori likes to quote St Therese D'Avila, a very great catholic mystic. 
Meditations are not guided, but the structure of the text is a self-guidance.

For a really guided meditation (step 1, 2, etc.) I obvisously think to "The Imitation of the Christ" (De imitatione Christi) but you need to find one where text structure has been kept (Chapter X - Thinking)