[Q] Android talkback for specific app topic

I have an Alcatel Spop
Pretty new to Android.
Downloaded a book on Google Play Books.
Started to read it OK.
Decided having it read to me would be nice.
So enable talkback in the OS settings.
Problem is everything talks back, even notifications as they come in.
So I turned it off.
Can it be enabled on a single app ??
Thanks
Jim

talkback wont stop topic

okay has my smartwatch 2 about 3 days now and i am running the apps for hangout and whatsapp but
my phone wont shut his mouth :D his keep telling me when there opens a window, I have trying to delete talk back
but its still going on.
Some one who knows how I can adjust it??