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Among Hachette's several guidebook series, the Guide Bleu is addressed to those seeking "discovery in depth".[1]
History
Starting with a guide to Switzerland (1841), Adolphe Joanne published a series of guidebooks in France under the name Guides Joanne. This was sold to Louis Hachette in 1855.[2]
From 1917 to 1933, Hachette collaborated with the publisher of the British Blue Guide series, and the Guides Joanne were renamed the Guides bleus in 1919.[3][4]