Excerpt from my latest Sasstrology article (please leave comments on the Sasstrology site):
"If you look at the placement of planets in your chart, you may see a concentration in one area. Or, your planets may be scattered around the chart. This is significant in chart interpretation. There are seven planetary patterns (or chart types) and they describe your overall temperament. This is based on where their energy is concentrated, and what planets are emphasized. When relationship planets and/or houses are involved, there is a significant impact on your love life. AstrologerMarc Edmund Jones first identified and analyzed these seven types, hence their name: “Jones Patterns.” Note that only the ten major planets are considered in these patterns."