This is the final instalment of this series (awhh! no Xenophobia, Yoga or Zealotry themed books). See how well-read you are in certain areas or explore more books on your favourite themes. Sourced from "Bloomsbury Good Reading Guide" (Nick Rennison, 8th edn, 2009).
01-08: Teenagers
O9-15: Terrorists/Freedom Fighters
16-21: Trains
22-40: Victorian England
41-48: Village and Countryside
49-56: Wales
57-63: War: Behind the Lines
64-72: Weepies
73-83: The West (The Great American Frontier)
84-91: The Wilderness
BTW, I realise there is some duplication of books over the challenges in this series. This is because of overlap in the themes.