The Power of Calm, or Address Stress program contains a series of books and apps. It includes a 14-day introductory program, introductory books, and an app I accessed on my iPhone.

Advantages:

it includes books as well as an app for those that need one or the other media

it has good content describing and defining stress

lots of pictures are included

It even includes in written and pictures mention of telomere length and size of the hippocampus and prefrontal cortex

the app is easy to learn, intuitive

the app includes lots of focus on breathing and soothing sounds

it provides good lists of ways to manage stress, like yoga, tai chi, and mindfulness

What it's not good at:

it doesn't get deep in terms of scientific citations

neither the book nor the app gets that deep in terms of the concepts covered in Palouse, Tolle, or Untethered Soul, or westernized concepts of Buddhist concepts of mindfulness

it also does not even mention these important resources for understanding and managing stress.