I purchased the above named book from WHSmith and in it, it has puzzles called 'mosaic'. It's a picture puzzle where squares are shaded based on the numbers in the grid to form a picture. Are there any of these puzzles online that i can print off?
They're called Hanjie. I've looked them up and found a few sites - none of them are really complicated though. You might want to try the puzzler website - puzzler.co.uk - they have various online Japanese games. Hope that helps.
Yes, you can even play online at www.conceptispuzzles.com, they call it 'fill-a-pix'.
If you sign up for an account, its free, and they update all their puzzles every week.
Enjoy!