I had a look at the book and preview of it. My feeling is that it may be counterproductive to label someone who has OEs as being "picky" about things. My understanding, from the limited reading that I have done, is that a child with OEs is not merely being "picky" and or inflexible: he or she has some real, biologically-based challenges that cannot be so easily classified. In other words, I would think that it would not be helpful to label a child who suffers from full-blown sensory processing disorder as "picky". I don't think I am articulating this very well, but my sense is that a child who has trouble functioning due to oversensitivity to artificial lights or the noise level in a typical classroom is dealing with something far more serious than can be addressed by reading Mr. Particular.
That having been said, perhaps reading the book is a good place to start a conversation and can be used to supplement whatever other therapies and strategies are being used by the family to help a child with OEs cope?
Again, not sure I am being very helpful here, but something sticks in my craw about characterizing a true OE as a weakness or failing.
A book I have found helpful for the purpose of dealing with strategies to cope with fears and encourage a growth mindset is "My Fantastic Elastic Brain":
https://www.amazon.ca/Fantastic-Ela...=8-1&keywords=my+fantastic+elastic+brain
