One of my favorite things to do as a writer is to join book club discussions and take questions from readers--whether it's via Skype, or if you're in the New York City area, in person. A Front Page Affair and Murder Between the Lines make great book club reads! They're fun, pacy, and in addition to distinctive characters and a gripping plot there's a lot to talk about in terms of old New York, women's history, and social and political history.
Each book includes a Reading Group Guide, Author Q & A, and Further Reading section (mostly non-fiction sources for anyone interested in learning more about the period.)
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While discussing, you might want to sample one of the 100 Famous Cocktails described by Oscar of the Waldorf-Astoria Hotel in his book of the same name. Here, for instance, is the recipe for a drink named for someone who was just becoming well-known in 1915. Enjoy, and cheers!