Books like Welcome to the Green House
Jane Yolen
Welcome to the Green House is 32 pages, about 35 minutes at 250 words a minute.
7 books to read next
How long each takes
The Most Beautiful Roof in the World 53 min 
Nature's Green Umbrella 35 min 
One Day in the Tropical Rain Forest 1.2 h 
The Great Kapok Tree 41 min 
Bloomin' Rainforests 2.4 h 
About the Rain Forest 44 min 
Diário De Pilar Na Amazônia 2.6 h Bar height shows length. Estimated at 250 words a minute.