black history posters | 4 pack - maya anglou, rosa parks, michelle obama, oprah winfrey | 13" x 18" non-laminated | juneteenth | classroom or home | civil rights heroes motivation without borders bring inspiration into your home or classroom with this motivational quote poster. motivation without borders was founded with the goal of making learning fun. our posters and educational products accelerate a child’s learning by engaging them with vibrant images, colors, text and content.