I replaced "days" with "hours" and got remarkably similar results: 253 more books, with 77 computer books followed by Teach Yourself Grammar and Style in 24 hours at number 78.

我用“小时”代替“天”作为关键字，得到了神奇般类似的结果：这次有253本书，前77本是计算机书，第78本是24小时自学语法和写作风格。

youdao

and had still not learned almost anything. She had one of those teach-yourself-piano books,

但并没有学会。她有一本自学钢琴的书，

和钢琴老师 - SpeakingMax英语口语达人