What is the primary difference between Nicola Pisanos and Giovanni Pisanos Sculpted pulpit depicting Annunciation Nativity and Adoration of the Shepherds?

The primary difference between Nicola Pisano and Giovanni Pisano's sculpted pulpits lies in their stylistic approaches and emotional expressiveness. Nicola's work, exemplified in the Pisa Cathedral pulpit, showcases a more classical and restrained style with a focus on clarity and narrative coherence. In contrast, Giovanni's pulpit in Siena reflects a more dynamic and emotional articulation, emphasizing movement and intricate details, which convey a deeper sense of drama and individuality in the figures. This evolution marks a shift from the classical to a more Gothic approach in sculpture.