An even better book recommendation (if you like the article) is "Not the End of the World: How We Can Be the First Generation to Build a Sustainable Planet" by Hannah Ritchie. Hannah Ritchie is head of research for ourworldindata.org; the book grew very directly out of the linked article.

Ritchie credits a lecture by Hans Rosling (one of the authors of Factfulness) in the forward for being what turned her from a pessimistic biology student into the person that writes a book like this.

A common criticism of the linked article is that "sure child mortality is going down, but what about X". Where X is climate change, species decline, quality of life, et cetera. The book addresses most "X"'s.