The important data a chart gives about a person needs to be interpreted. That is the experty of the astrologer. Besides planets, angular points, signs and houses (with the emphasis on Sun, Moon and AC), there is more information to consider: relationships between planets and angular points, also known as astrology angles; Planetary structures and patterns; the 6 different axes and their meanings; and more.
Here you can find useful introductions to some of the most important elements to consider in astrology charts reading:
The 6 astrology axes – what are they and how to read them, including an example of combining different axes in interpretation
The difference between planets and angular points
Planetary structures and Patterns – the main important structures, their importance in reading a chart and their astrological meaning
Astrology angles – understanding the different angles – the relationships between planets and angular points in a chart – and their meaning in astrology.