Protest signs are visual tools used by individuals or groups to express their opinions and demands during demonstrations or rallies. These signs often feature bold text, colorful designs, and powerful images to grab attention and convey messages clearly. Common themes include social justice, environmental issues, and human rights, making them essential for movements like Black Lives Matter or climate change activism. People create protest signs using various materials, such as cardboard, poster board, or fabric. They can be handmade or printed, allowing for creativity and personalization. Effective signs can inspire others, raise awareness, and encourage dialogue about important issues in society.