I actually think most non-fiction books are not worth the time, and you'd be better off reading a summary of the ideas and/or just going directly to an encyclopedic resource on the underlying subject matter.
The contemporary publishing industry is designed around expanding an often very simple idea into a book-length treatment, typically to support the author's book tour and consulting career. It is not designed to create beautifully-written books that are worth reading in their entirety.
None of this applies to fiction, in case that was unclear. It also doesn't apply as much to biographical-style books that offer some insight into the author's life and mindset.
The contemporary publishing industry is designed around expanding an often very simple idea into a book-length treatment, typically to support the author's book tour and consulting career. It is not designed to create beautifully-written books that are worth reading in their entirety.
None of this applies to fiction, in case that was unclear. It also doesn't apply as much to biographical-style books that offer some insight into the author's life and mindset.