2. Determine the theme: choose an interesting historical event or person as the theme of the picture book.
3. Sketch design: Draw the general structure of the picture book with a pencil on the sketch paper, including the layout of the page and the position of the text.
4. Draw illustrations: Draw relevant illustrations on each page. You can use colored pens or brushes to enhance the colors and details of illustrations.
5. Add text: Use text to describe the historical events or people in each illustration, and the text should be concise and vivid.
6. Proofreading and sorting: Finally, carefully check and correct the text and illustrations of the picture book to ensure the accuracy and consistency of the content.