hiː ɪz ɐ nˈoʊɾᵻd hɪstˈoːɹiən ɔnðə bɹˈɪɾɪʃ lˈeɪbɚ pˈɑːɹɾi ænd kˈɑːmjuːnˌɪst pˈɑːɹɾi pɚtˈɪkjʊlɚli ɪnðɪ ˈiəɹə ʌvðə kˈɑːmjuːnˌɪst ˌɪntɚnˈæʃənəl, hˌævɪŋ bˌɪn wˈʌn ʌvðə fjˈuː fˈɔːɹən, nˈɑːnpˈɑːɹɾi hɪstˈoːɹiənz tə hæv hæd ˈæksɛs tʊ ˈɑːɹkaɪvz ɪn mˈɑːskoʊ fˈɑːloʊɪŋ ðə fˈɔːl ʌvðə sˈoʊviət jˈuːniən.
He is a noted historian on the British Labour Party and Communist Party particularly in the era of the Communist International, having been one of the few foreign, non-party historians to have had access to archives in Moscow following the fall of the Soviet Union.