This diploma thesis investigates the connection between power, knowledge and cultural hybridity in the postcolonial context of two novels by Barbara Kingsolver. The theoretical basis of this analysis comes from the works of Michel Foucault which are reduced to the equation ?Truth = Power plus Discourse?. ?Truth?, hence, becomes the product of a discursive, reinforcing process, in which ?knowledge? creates ?power? and, vice versa, ?power? creates ?knowledge?. As an extension and addition to Foucault?s concepts, Homi K. Bhabha?s thoughts on cultural ?hybridity? have been applied to Kingsolver?s works. For Bhabha, it is in the so-called ?third space? between two cultures in which new knowledge and identities emerge and become more than the sum of their sources. In both of the novels by Kingsolver, The Poisonwood Bible and The Lacuna, these dimensions are central for the characters? perception of their worlds and are exemplified with passages from the novels.