After he bought the Calder and the Tomlin, Kirshenbaum wanted a piece by Josef Albers, a German-born Bauhaus artist who pioneered so-called color field painting, in which large blocks of color are spread across a canvas.

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The small color coded "blocks" snap together with magnets allowing even a novice to create a functioning circuit in seconds.

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With walls covered in calendars and color charts, and shelves and tables filled with computers, blocks, pegboards and books, it's a place to begin learning literacy, math and writing as well as to master fine motor skills and be social.

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Color-blocking remained big, though designers were experimenting with combining blocks of textures or patterns, such as fur with knits at Victoria Beckham and Alexander Wang and herringbone with glen plaid at Thom Browne and Tommy Hilfiger.

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