What shape is the constellations Lyra ?

Amazon "Astronomy & Cosmology" Books Sales Top 3

Top 3 graph(Updated in 10/19)

Top 1Origins: How The Earth Made Us Lewis Dartnell £20.00
Top 2The Almanac: A Seasonal Guide to 2019 Lia Leendertz £10.00
Top 3Little Kids First Big Book of Space (First Big Book) Catherine D. Hughes £9.99

Top 10
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