First, you need to choose a reputable grading service. Then, carefully package and ship your comic books to them. They'll examine factors like cover quality, page condition, and binding to determine the grade.
To get your comic books graded, look for well-known grading agencies. Follow their submission guidelines precisely. They'll consider aspects like color fading, creases, and staple placement to give a grade.
You can send them to professional grading companies. They have experts who assess the condition and assign a grade.