Three cards for a quick read, or ten in the Celtic Cross for a deep one — with the original 1911 interpretations
Three cards show the current only. The Celtic Cross is a ten-position layout that has served as the standard for a hundred years or so, splitting the reading into the matter, what crosses it, the foundation, the surroundings and where it lands.
Card art from the public-domain 1909 Rider-Waite-Smith deck. Meanings condensed from A.E. Waite's 1911 "The Pictorial Key to the Tarot" (public domain).