Luo, herself, is a lover of picture books, so the third episode explores how three authors create their visual wonderlands. The last two episodes are about book designers and book lovers.

"Each of the interviewees has a wonderful story that we could take a whole episode to tell, but we have to cut each story to around 10 minutes, which is a hard process for us," Luo says.

The name of the documentary originates from a poem with the same name by Polish-American poet Czeslaw Milosz.

Luo uses a soft narrative style to tell the stories.

"Reading is a vehicle that can carry us safely to countless parallel worlds besides many parts of our own, and we hope this documentary can capture the wonderful stories about books and book lovers-as well as offering a salute to the book editors," she says.

The voice-over of the documentary is performed by actor Hu Ge, attracting many of his fans, many of whom were impressed by the quality of the documentary.

Zhu Xianliang, general producer of the documentary, says it's a win-win situation for both the production team and Hu, as the film also exposes him to potential new fans, too.

Zhu Xianliang was impressed by Hu's working attitude. "He spent the whole day, from 9 am to midnight, recording, which is a heavy workload, even for a professional voice-over artist," he recalls. "He was doing it for free. The two boxed meals during the recording were the only thing we offered him."