The Prfcnl Bundle for IQ Test Practice and Prep by Perfect Consulting B.V. is a comprehensive test book designed for individuals aged 16 years and up. This bundle includes practice materials for various IQ tests such as BDT, WISC, WPPSI, and WAIS, providing a comprehensive preparation resource for those looking to improve their IQ scores. With a compact size of 8.66 x 6.69 x 1.57 inches and weighing only 8.8 ounces, this bundle is convenient for on-the-go studying and review. Perfect for students, professionals, or anyone interested in enhancing their cognitive skills.