Everything you need to understand or teach The Thief Who Couldn't Sleep by Lawrence Block.
A major theme is that of the wanderer, of the hero with the ability to travel through the world and be at home. Allied with this wandering is the idea of freedom. The Irish girl Nora tells Tanner that she has only dreamed of taking the bus to Dublin from the village outside Limerick where she keeps house for her father and brother.
Tanner's mobility attests to his freedom...
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Lawrence Block