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Hiding in plain sight
Axel Kerbec gets locked out while exchanging keysOn the cover: Harriss spiral
Find out more about the spiral trees on the cover of Issue 09Closing the Gap
A review of Vicky Neale's new book about the quest to understand prime numbers.Christmas conundrum #3
Try our nonograms! And remember, not all puzzles have a unique solution...The mathematics of human migration
Human migration with mathematical models, data and a hands-on experiment!Mathematics: queen of the arts?
Exploring the connection between maths and art.