Hilary Koll and Steve Mills are award-winning writers, educational consultants and INSET providers. They have both worked as school maths co-ordinators and lecturers in maths education.

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Better World Books is the world?s leading socially conscious online bookseller and has sold over 100 million books. Each sale generates funds for global literacy. We offer low prices, fast shipping, and have a 100% money back guarantee.

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Better World Books Ltd
Better World Books, Third Floor, One London Square, Cross Lanes, Guildford, GU1 1UN, United Kingdom

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Better World Books (BWB) values your satisfaction and offers you returns within thirty (30) days after the estimated delivery date on most items. All returned items must be in the original condition; used items should include the SKU sticker located on the spine or back of the product.

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