Wikipedia:Articles for deletion/The Principles of Exercise Therapy
and . Multiple book reviews (in the sort of scholarly journals that are the best sources possible for something like this) satisfy GNG and NBOOK. The number of editions alone would satisfy TBK. "Specialist publications" is not a valid argument, has no basis in policy or guideline, and is totally unacceptable because would result in Wikipedia being dumbed down into a children's encyclopedia for babies of low intelligence. All genuinely reliable sources are "specialist" in the sense being used here, because only those sources are written by people with adequate academic credentials. Indeed WP:TBK explains at some length why the "specialist" argument cannot be used. The other arguments are WP:SOFIXIT. A search for "The Principles of Exercise Therapy"+review brings up additional book reviews such as the South African Journal of Physiotherapy https://books.google.co.uk/books?id=LzsdAQAAMAAJ
— User:James500, 11:50, 11 May 2018 (UTC)
Stance: keep
Cited policy: WP:TROUT (Wikipedia:Whacking with a wet trout)