邊寫邊思考的大腦整理筆記法： 養成「書寫→思考→解決」的習慣，增加生產力，強化學習力，紓解壓力，心智升級！ (二手書交易資訊)

[{"sale_price":869,"disc":289,"prod_count":5,"sale_month":"201906","avg_price":173,"avg_disc":58},{"sale_price":1114,"disc":370,"prod_count":6,"sale_month":"201907","avg_price":185,"avg_disc":62},{"sale_price":490,"disc":163,"prod_count":3,"sale_month":"201908","avg_price":163,"avg_disc":54},{"sale_price":1570,"disc":523,"prod_count":8,"sale_month":"201909","avg_price":196,"avg_disc":65},{"sale_price":1281,"disc":427,"prod_count":6,"sale_month":"201910","avg_price":213,"avg_disc":71},{"sale_price":755,"disc":251,"prod_count":4,"sale_month":"201911","avg_price":188,"avg_disc":63}]