17 点作者 iamwil大约 2 个月前

2 条评论

milliams大约 2 个月前

Interesting recent video on ISBNs and their relationship to barcodes: <a href="https://www.youtube.com/watch?v=68vS8CTBL3k" rel="nofollow">https://www.youtube.com/watch?v=68vS8CTBL3k</a>

jagged-chisel大约 2 个月前

Previously: <a href="https://news.ycombinator.com/item?id=42897120">https://news.ycombinator.com/item?id=42897120</a>

ISBN Visualization

2 条评论

ISBN Visualization

2 条评论