No, the ass detective has published three series so far. The earliest set is the greenhouse series published by Beijing United Publishing Company in June 20 16. At present, there are a total of seven books, which are relatively large in size and format, commonly known as picture book edition. The recommended reading age is 3-6 years old. The so-called bridge book is actually a large number of words, which is an excessive reading between parent-child reading and independent reading. Whether it is the picture book version or the bridge version, the story of "Ass Detective" is not repeated, so you don't have to worry about repeating the content if you buy it.

However, in pirated picture books, the copyright pages are basically not updated or even missing. Generally, pirated picture books are best-selling picture books. Because these picture books sell well, they are reprinted a lot. If the picture book you bought was reprinted a few years ago, you may have to distinguish it carefully.