Children's encyclopedia "Why 100,000?" Extracurricular reading for primary school students (Building The Ultimate Brain)
| Country | USA |
| Brand | HarperCollins Children's Books |
| Manufacturer | Zondervan |
| Binding | Imitation Leather |
| ReleaseDate | 2020-04-07 |
| UnitCount | 1 |
| UPCs | 025986453053 |
| EANs | 9780310453055 |