Chapter Two Theoretical Foundation There have been various ways for discourse analysis based on kinds of theoretical foundations. Hallidays systemic functional grammar is the most influential and provides a vital theory base for discourse analysis as Eggin (Eggin, 1994) has stated that it is a systemic model of analyzing discourse which constructs realizing relationship between each metafunction and grammatical system, between organizations of languages three functions and registers three components, and between cultural context and contextual structure. The study will be taken mainly within the framework of Hallidays systemic functional grammar 2.1 Systemic Functional Grammar to realize modality? modal verbs, modal adjuncts and metaphors are important markers; through the choices of the first, second and third person pronouns. we can achieve the value of person While according to Martins Appraisal Theory Attitude carries its task to realize interpersonal meaning by adopting the expressions of Affect, Judgement and Appreciation. A11 these linguistic devices make special contributions to interpersonal meaning realization in book review.