These slides include many inappropriate graphs. If you want to tell the summary of the data correctly, you should avoid to use graphs in this presentation. They can mislead those who view them. In English, the title of presentaion is "24 slides including graphs that should not be absolutely drawn".
SQLアンチパターン 幻の第26章「とりあえず削除フラグ」
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絶対に描いてはいけないグラフ入りスライド24枚 -slideshare
