The Two Graphs

The Two Graphs
First edition (UK)
AuthorJohn Rhode
LanguageEnglish
SeriesLancelot Priestley
GenreDetective
PublisherGeoffrey Bles (UK)
Dodd Mead (US)
Publication date
1950
Publication placeUnited Kingdom
Media typePrint
Preceded byUp the Garden Path 
Followed byFamily Affairs 

The Two Graphs is a 1950 detective novel by John Rhode, the pen name of the British writer Cecil Street. It is the fiftieth in his long-running series of novels featuring Lancelot Priestley, a Golden Age armchair detective. It was published in America by Dodd Mead under the alternative title Double Identities. Writing in The Observer Maurice Richardson noted a "slight slackening of tension towards the finish but an excellent specimen of Rhode’s later period."