blˈæki ænd sˈʌn ɪnˈɪʃəli pˈʌblɪʃt bˈʊks sˈoʊld baɪ sʌbskɹˈɪpʃən, ɪŋklˈuːdɪŋ ɹᵻlˈɪdʒəs tˈɛksts ænd ɹˈɛfɹəns bˈʊks.
Blackie and Son initially published books sold by subscription, including religious texts and reference books.