Cart

Remove item Thumbnail image Product Price Quantity Subtotal
× The Duality of Chess 2.99 $
2.99 $
× The Unspoken Language of Children 2.99 $
2.99 $
× Solving Complex Issues: Optimization, Logic, and Beyond 2.99 $
2.99 $

Cart totals

Subtotal 8.97 $
Total 8.97 $ USD