I purchased three sets of books on the planets for my students to use as they did a research project during our astronomy unit. I have to say that this set was my least favorite. The text is written in something like 36 pt font, so there are perhaps 100 words total in the 24-page book.
The only thing I found useful was the last page of each book that had a summary of facts about the planet.
Been reading this entire updated series to my son. This Venus book is by far the least favorite. It spends too much time comparing Venus to Earth and less time talking about the planet itself. I found with the rest of the series, the books usually offer some interesting facts, but here they make things confusing rather than clear.