This drawing was sketched prior to proposed alterations to Langley Park. Perspective with overlaid paper flap in place showing cattle and sheep in the foreground This sketch is from one of Repton's Red Books. Repton would produce a Red Book for each of his proposed landscape schemes. These bound volumes of essays and watercolours served as persuasive marketing tools for his work and included both 'before' and 'after' views of the development sites utilising overlaid paper flaps to indicate Repton's suggested improvements.