Advertisement for Lasker book
The book is called Kriegsbüchlein für das deutsche Haus (War Booklet for the German House), and is advertised as ‘The Christmas book of 1914 (…) that is absolutely necessary in every household during the war.’
Lasker’s involvement is unclear. He is named as one of the many publishers, but it doesn’t say whether he wrote for the book. One of the chapters is called Krieg und Spiel (War and game).
Österreichisch-Ungarische Buchhändler-Correspondenz 1914, p. 610