這個設計好在哪? 看懂平面, 網頁及廣告設計的奧秘：設計人一定要答對的 55 個問題 (二手書交易資訊)

[{"sale_price":600,"disc":214,"prod_count":5,"sale_month":"202006","avg_price":120,"avg_disc":43},{"sale_price":260,"disc":92,"prod_count":2,"sale_month":"202007","avg_price":130,"avg_disc":46},{"sale_price":700,"disc":251,"prod_count":5,"sale_month":"202008","avg_price":140,"avg_disc":50},{"sale_price":150,"disc":"54","prod_count":1,"sale_month":"202009","avg_price":150,"avg_disc":54},{"sale_price":349,"disc":124,"prod_count":3,"sale_month":"202010","avg_price":116,"avg_disc":41},{"sale_price":529,"disc":189,"prod_count":5,"sale_month":"202011","avg_price":105,"avg_disc":38},{"sale_price":130,"disc":"46","prod_count":1,"sale_month":"202012","avg_price":130,"avg_disc":46}]