Product Quantity Subtotal AP Statistics Premium, 2025: Prep Book with 9 Practice Tests + Comprehensive Review + Online Practice (Barron's AP Prep) $17.19 1 × $17.19 1 $17.19 Introduction to Fourier Optics $19.95 1 × $19.95 1 $19.95 Update cart Cart totals Subtotal $37.14 Total $37.14 Proceed to checkout