When I read a book but I don’t remember what I read and I want to write it somewhere When you want to write a good verse, feeling, or thought of a book When you want to remember a book recommended by someone else When I try to borrow a book for my child from the library, but I can't remember if it was a book I read Write it down in Hellobook! [main function] * Add bookshelves at your own pace * Search for books by barcode or keyword or simply enter directly * Status management by reading books,