In this impressive collection quilters will discover a rich compendium of 201 classic blocks that they can use to hone their sewing skills, in block exchanges, or to create wonderful block sampler quilts. All the math is done for you--the author provides accurate dimensions for each cut so quilters can easily size their blocks for six, nine, and twelve-inch blocks. With clear instructions and expert advice, exploded diagrams of each block make construction a snap without special rulers. Block Genius includes instructions on constructing half-square and quarter-square triangles, flying geese, square-in-a-squares and parallel blocks, plus tips on fabric selection, color choice, cutting, pressing, and sewing. This delightful block library is sure to become quilters' go-to source for reference, inspiration and instruction.