He then began his signature style of  mosaic cityscapes. Sgaffitoed tiles, placed among abstract cities, made visual themes of human struggles from literature or the Bible.

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Ceramic mosaic murals led to over 50 commissions for churches, synagogues, hospitals, colleges and private collections in the United States, England and Africa.

 

David also worked in ceramic brick carvings, stained glass windows, bronze, fabric collages and hand-hooked wool tapestries. He taught at Harvard University, Stonehill College and adult education centers.