This book is an easy read and is worth picking up if you’re interested in writing. The book is less of a discussion of ‘how’ to ‘write to learn’ and more of an overview of ‘why’ you should ‘write to learn’.
The book is full of examples of good writing in many different topics. The majority of the book is passages from authors in various fields surrounded by Zinsser’s commentary on why the passage is worth including.
I can’t wholeheartedly recommend this book like I did On Writing Well, but it is worth reading for those of you who are interested in the subject.