This is a simple map showing the (non-canon) arrangement of the shops in Diagon Alley as it appeared on Pottermore.
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Commentary
Image title supplied by the Lexicon staff.
Where is Madam Milken's, Harry first stop after Gringotts?
That shop wasn't included in Pottermore's representation of Diagon Alley, so it's not included in this graphic. This map is NOT a complete canon representation of Diagon Alley.