Care Instructions Care Info Ainsworth Walnut Bookcase Dust with soft dry cloth. Do not leave spills unattended. Wood characteristics: grain, knots, pitting, mineral deposits. Expansion and contraction will occur with changes in humidity. For indoor use only. Seasonal splitting and checking are inherent to this product. For soil build-up, wipe with damp cloth & dry. Do not use abrasive cleaner. Avoid direct sunlight. Condition periodically with furniture paste wax. Protect from heat and liquids.