This page suggests books useful for the subject.
The papers from the first conference, published by Palgrave Macmillan in Summer 2016:
Languages and the First World War: Representation and Memory
http://www.palgrave.com/us/book/9781137550354
Languages and the First World War: Communicating in a Transnational War
http://www.palgrave.com/gp/book/9781137550293
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Publishers, Readers and the Great War: Literature and Memory since 1918, by Vincent Trott, published by Bloomsbury History, 2018
https://www.bloomsbury.com/uk/publishers-readers-and-the-great-war-9781474291484/
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Words and the First World War by Julian Walker, published by Bloomsbury Linguistics, 2017
https://www.bloomsbury.com/uk/words-and-the-first-world-war-9781350001923/
Also on Amazon
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Furphies and Whizz-bangs: Anzac Slang from the Great War by Amanda Laugesen, published by Oxford University Press, 2015
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Les Mots des Tranchées by Odile Roynette, published by A Colin, 2010
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L’Argot de la Guerre, Albert Dauzat, published by A Colin, 2007
https://numerique.dunod.com/LIVRES/ISBN/9782200356101.livre
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Trench Talk, Words of the First World War, by Peter Doyle and Julian Walker, published by The History Press, 2012
https://www.thehistorypress.co.uk/publication/trench-talk/9780752471549/
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Lingo of No Man’s Land, by Lorenzo Smith, edited by J M Coleman, published by the British Library, 2014
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Si vous mentez vous serez fusillé! Manuel de conversation à l’usage du soldat allemand, by John Horn and Franziska Heimburger, published by Vendémiaire, 2013
https://www.editions-vendemiaire.com/catalogue/collection-echo/si-vous-mentez-vous-serez-fusille/
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Decoding the front – Communicatie – Communication 1914-1918, by Karen Derycke, published by Vandenbroele, 2017
The entry of the Dominions and the colonies into WWI produced a mixture of languages and cultures and communication thus became an international concept. The publication Decoding the Front draws the attention to the wide range of possibilities that the word Communication covers.
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Fritz and Tommy: across the barbed wire, by Peter Doyle and Robin Schäfer, The History Press, 2015.
‘For the first time, and drawing widely on archive material in the form of original letters and diaries, Peter Doyle and Robin Schäfer bring together the two sides, ‘Fritz’ and ‘Tommy’, to examine cultural and military nuances that have until now been left untouched’
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1917 – The Passchendaele Year: The British Army in Flanders: The Diary of Achiel Van Walleghem published by Edward Everett Root Publishers, 2017
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British, French and American Relations on the Western Front, 1914-1918 by Chris Kempshall, published by Palgrave Macmillan
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Information History of the First World War, edited by Karvalics László, published by L’Harmattan, 2016
https://bookline.ro/product/home.action?_v=_&id=1088706&type=20
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Multilingual Environments in the Great War, edited by Julian Walker and Christophe Declercq, published by Bloomsbury, 2021

https://www.bloomsbury.com/uk/multilingual-environments-in-the-great-war-9781350141353/
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Tommy French, by Julian Walker, published by Pen and Sword, 2021

https://www.pen-and-sword.co.uk/Tommy-French-Hardback/p/18941
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Witt, Steven. “Interwar Internationalism and the Rebuilding of the Catholic University of Louvain Library (1914–1928).” Libraries: Culture, History, and Society4.1 (2020): 1-28.
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International Poetry of the First World War, edited by Connie Ruzich, published by Bloomsbury, 2021

International Poetry of the First World War: An Anthology of Lost Voices