To start assembling the puzzle, first spread out all the pieces on a large, flat surface. Look for the edge pieces and start building the frame. Then, sort the pieces by color or pattern to make it easier to find the right ones. As you're putting the pieces together, take your time and be patient. Once you've completed the puzzle, you can use puzzle glue to preserve it if you want to display it. Keep the puzzle away from moisture and direct sunlight to prevent damage. When storing the puzzle, make sure it's in a dry place. If you're not going to use the box, consider rolling the glued - puzzle and storing it in a tube. Have fun assembling this magical Hogwarts puzzle!