The Sketch Phase is a crucial part of the illustration process for children's books, where artists begin to translate written narratives into visual concepts. During this phase, rough sketches are created to explore character designs, settings, and key scenes. Artists experiment with styles, compositions, and perspectives, often presenting various iterations of illustrations to the author and editors for feedback. This stage is essential for shaping the overall look and feel of the book, allowing both the illustrator and the creative team to align on the visual storytelling before moving to the final artwork.