Hey there! If you need to test for color vision deficiencies, this Ishihara Test Chart Book is exactly what you're looking for. This latest edition comes with 38 different colored plates that help identify red-green color blindness and other color vision issues. The book includes everything you need - the test plates themselves, a user manual to guide you through proper administration, and even an eye occluder to test one eye at a time. Whether you're a healthcare professional, school nurse, employer doing pre-employment screenings, or just someone curious about their color vision, this test is the gold standard that's been used for decades. The plates feature those classic colored dots with hidden numbers or patterns that people with normal color vision can see but those with color deficiencies might miss. It's super easy to use - just make sure you have proper lighting and follow the instructions in the manual. This isn't some cheap imitation either - it's the real deal that eye doctors and professionals trust. Keep in mind that for official purposes, you might want to consult with an eye care professional, but for basic screening and educational purposes, this test book is absolutely perfect and incredibly reliable.