Located in Utah, US, Lux et Umbra offers a carefully chosen and meticulously described selection of very fine and scarce early printed books and manuscripts which constitute notable landmarks in the history of human thought across a wide range of subjects: from science to law and government, from theology to the occult, and from literature to travel and early americana.

We tend to deal in editions of significant rarity; often, the exemplar you see offered on this site is the only one currently on the market.

Our clients include prominent private collectors and institutional libraries. We endeavour to keep our pricing very competitive, and often we do offer discounts to regular buyers and fellow dealers.

To inquire about any of our books, please contact us, and we will make sure to respond within a day.