I'm currently reading
Six Wives: The Queens of Henry VIII, by David Starkey
Orlando by Virginia Woolf
The League of Extraordinary Gentlemen: Black Dossier by Alan Moore
The Western Canon by Harold Bloom
and
Escape by James Clavell
Looking at the list I realise most of them are connected, and I was led to the non-fiction by references in the fiction.
The non-fiction is also more sporadic (staying for ages on the bookshelf in the toilet, or the bookshelf by the bath), while the fiction gets burned through quicker.
Strikes me that juggling several books according to mood is actually a different way of reading to lots of people. My wife, for example, is strictly linear (and drives herself mad when she's stuck in a book she hates, because she HAS to complete them = definition of madness?)
Anyone else? And are your partners similar?