Originally Posted by AlPe
Insert it in the <language> tag of the <metadata> section of the OPF file. The correct code for Swedish is 'sv'.
So that is enough, for the whole book?
No need for this?
<body xml:lang="SV" xmlns:xml="http://www.w3.org/XML/1998/namespace">
I see I have it in some of my chapters. (Still in the process of un-messing it all.)