The first book of Philip Pullman's His Dark Materials trilogy.
I now have Book Two but have yet to start it. (Both were Christmas presents, a year apart!)
Before that, Robert Harris' The Second Sleep - I'd first heard it in daily serial form on BBC Radio Four, but missed a few episodes.
Non-fiction:
One whose title I forget, by Bill Gates, collating analyses of human uses of natural resources and pressures on the environment, and his optimistic suggestions for minimising the damage.
I have yet to read Vaclav Smit's How The Wortld Really Works, and Neil Roberts' The Holocene - An Environmental History; plus various other books I have bought or been given!
......
One very unusual book I was given is of those peculiar images that resemble multi-coloured, runaway Q-codes mixed with an explosion in paint factory. You need view them in a cross-eyed way to see the hidden picture, but my eyes won't let me.
