Cryptic Crosswords from the Guardian

The list author says:
	"A collection of puzzles by Bunthorne - Bob Smithies, who died in 2006.  Quite difficult puzzles with some very inventive clues - Bunthorne was a classic "individualist" Guardian setter"

The list author says:
	""Paul" is John Halpern, who sets for the Times, Independent and FT as well as the Guardian.  He writes cheeky and tricky clues in the non-Ximenean style of setters like Araucaria and Enigmatist"

The list author says:
	"Rufus writes puzzles that are relatively easy for the Guardian, so this is probably the best book in this series for new solvers.  But there's plenty for more experienced ones to enjoy too."

The list author says:
	"Gordius is maybe more likely than most to make clues difficult by requiring knowledge rather than subtle cryptic wordplay. One of the easier Guardian setters for me - but I've sat in the black chair."

The list author says:
	"Guardian-based guide by their xwd editor - not totally accruate on technicalities, but fun to read"

The list author says:
	"80 Years of Guardian puzzles from a range of setters"