Originally Posted by Iznogood
The book I'm looking for is "The Technique of the Mystery Story", written by Carolyn Wells in 1913. From what I understand of copyright law, this book is public domain in the entire world, and could be copied and distributed freely?
That depends on what year Carolyn Wells died in. Most western countries have either a "life+50" or a "life+70" copyright law, so the dependency is not on when the book was published, but when the author died. The notable exception is the USA, in which anything published prior to 1923 is in the public domain, so this book would be in the US public domain.
Norway has a "Life+70" copyright term, so this book will be in the public domain (as of tomorrow) if the author died in 1942 or earlier.