Liber veritatis, or, A collection of two hundred prints after the original designs of Claude le Lorrain in the collection of the Duke of Devonshire,
A 1777 catalogue of two hundred prints by Richard Earlom after Claude Lorrain's drawings in the Duke of Devonshire's collection, published by John Boydell in Cheapside, London, for collectors and art students. The pictures are pastoral landscapes of trees, rivers, hills and small figures, rendered as brown wash drawings and fine etched outlines, showing a designer how to build atmospheric depth through layered foliage, distant light and diminishing tonal values.
