'Keep It Dark' Exercise Book

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A5 unlined exercise book featuring one of a poster design held in The National Archives collection.

This image "You Know a Secret-Keep It Dark" was on a poster in the Central Office of Information's 1939-46 campaign and was designed by Jan Lewitt and George Him. Document reference INF 3/269.

Delivery within the UK

We offer free standard delivery on all orders over £50.*

Orders up to £30 are charged a flat fee of £4.95

Orders between £30.01 and £50 are charged a flat fee of £6.95.

Usual delivery timescale is between 5 and 7 working days from the date of dispatch. Please allow up to 14 working days for delivery. *UK only.

Delivery Worldwide

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Custom Prints

Information on delivery charges and timescale for custom prints can be found here.


If you are not completely satisfied with your item you may return it within 28 days for a refund.

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Unfortunately we cannot offer a refund on custom prints unless they are faulty or we have made a mistake. Custom prints are exempt as they are made to order.

Manufacturer/Publisher: Custom Works
Binding: Paperback

SKU: 5038681089958