It is a 3 generation genogram. Each generation is depicted below the preceding one, with grandparents at the top, parents on the next level down, and children at the bottom. Children, too, have a drawing direction, with the eldest on the left and the youngest on the right in declining birth order.
Through the use of lines, genograms may illustrate the quality of ties between each family member. Marriage, divorce, and various life conditions can be represented by lines.
Each member's name and age are inscribed inside the shapes. Additional information, such as the date of marriage, educational history, employment, and current location, might be included if relevant to the goal of your genogram.