In Theoretical and Experimental Aspects of Syntax-Discourse Interface in Heritage Grammars, Tanya Ivanova-Sullivan investigates comprehension and production of anaphoric dependencies with null and overt subject pronouns. She discusses the divergent behaviour of the heritage speakers of Russian by providing a closer look at their proficiency level, quantity of input and order of language acquisition. She explains the results with various degrees of successful application of pragmatic principles and efficiency in allocating cognitive resources. The contribution of the monograph lies in the discussion of theoretical and experimental issues related to anaphora resolution along with an investigation of all aspects of representation and processing of anaphoric pronouns by various kinds of bilinguals: heritage speakers, L2 learners and L1 attriters.