Simone de Beauvoir (1949; 2011) The Second Sex. Translated by Constance Borde and Sheila Malovany-Chevallier with an introduction by Sheila Rowbotham. London: Vintage.
Sherry B. Ortner (1972) Is Female to Male as Nature is to Culture?, Feminist studies 1(2), pp. 5-31.
Gayle Rubin (1975) “The Traffic in Women: Notes on the Political Economy of Sex,” in Rayna Reiter (Ed.) Toward an Anthropology of Women. New York: Monthly Review, pp. 157-210.
bell hooks (1981) Ain't I a Woman? Black Women and Feminism. Boston: South End Press.
Audre Lorde (1984) Sister outsider: Essays and speeches. Berkeley: Crossing Press.
Catharine A. MacKinnon (1984) “Difference and Dominance: On Sex Discrimination,” in Feminist Legal Theory. London: Routledge, pp. 81-94.
Joan W. Scott (1986) Gender: A Useful Category of Historical Analysis. The American Historical Review 91(5), pp. 1053-1075. 
Donna J. Haraway (1988) Situated Knowledges: The Science Question in Feminism and the Privilege of Partial Perspective. Feminist Studies 14(3), pp. 575-599.
Deniz Kandiyoti (1988) Bargaining with Patriarchy. Gender and Society 2(3), pp. 274-290.
Carole Pateman (1988) “Contracting In,” in The Sexual Contract. Cambridge: Polity Press, pp. 1-18.
Judith Butler (1990) “Subjects of Sex/Gender/Desire,” in Gender Trouble: Feminism and the Subversion of Identity. New York: Routledge, pp. 1-34.
Iris Marion Young (1990) Justice and the Politics of Difference. Princeton: Princeton University Press.
Moira Gatens (1991) “A Critique of the Sex/Gender Distinction,” in Sneja Gunew, (Ed.) A Reader in Feminist Knowledge. London: Routledge. pp. 139-160. Print book available at QMUL Library.
Anne Phillips (1992) Democracy and Difference: Some problems for feminist theory. The Political Quarterly 63(1), pp. 79-90.
Nancy Fraser (1993) Beyond the master/subject model: Reflections on Carole Pateman's Sexual Contract. Social Text 37, pp. 173-181.
Henrietta Moore (1994) 'Divided We Stand': Sex, Gender and Sexual Difference.  Feminist Review 47, pp. 78-95.
Carole Pateman (1999) “Beyond the sexual contract?,” in Dench Geoff (Ed.) Rewriting the sexual contract. New York: Routledge, pp. 1-9. Print book available at QMUL Library.
Toril Moi (1999) “What Is a Woman? Sex, Gender, and the Body in Feminist Theory,” in What is a woman?: and other essays. Oxford and New York: Oxford University Press. Print book available at QMUL Library.
Tracy E. Higgins (2000) Reviving the public/private distinction in feminist theorizing. Chicago-Kent Law Review75(2), pp. 847-867.
Cynthia Enloe (2001) “Gender Makes the World Go Round,” in Bananas, Beaches and Bases: Making Feminist Sense of International Politics. Berkley and Los Angeles: University of California Press, 1-18.
Joan W. Scott (2001) Fantasy Echo. History and the Construction of Identity. Critical Inquiry 27(2), pp. 284-304.
Eileen Boris (2002) “Gender After Africa!,” in Catherine Cole, Takyiwaa Manuh and Stephan F. Miescher (Eds.) Africa After Gender? Bloomington: Indiana University Press, pp: 191-204.
Rosi Braidotti (2002) “The Use and Abuses of the Sex/Gender Distinction,” in Gabrielle Griffin and Rosi Braidotti (Eds.) Thinking Differently: A Reader in European Women’s Studies. London: Zed Books, pp. 285-307.
Ella Shohat (2002) Area Studies, Gender Studies, and the Cartographies of Knowledge. Social Text 72, 20(3), pp. 67–78.
Bibi Bakare-Yusuf (2003) ‘Yorubas’ Don’t Do Gender’: A Critical Review of Oyèrónkẹ́ Oyěwùmí’s The Invention of Women: Making An African Sense of Western Gender Discourses. African Identities 1(1): 119-140.
Wendy Brown (2003) Gender in counterpoint. Feminist Theory 4(3), pp. 365–368.
Valerie Bryson (2003) Feminist Political Theory (Second Edition). Basingstoke and New York: Palgrave Macmillan.
David Valentine (2004) The Categories Themselves. GLQ: A Journal of Lesbian and Gay Studies 10(2), pp. 215-220.
R.W. Connell (2005) Masculinities (Second Edition). Abingdon: Routledge.
R. W. Connell and James W. Messerschmidt (2005) Hegemonic Masculinity: Rethinking the Concept. Gender & Society 19(6), pp. 829-859.
Margaret Walters (2005) Feminism: A very short introduction. Oxford: Oxford University Press.
Clare Hemmings (2005) Telling feminist stories. Feminist theory 6(2), pp. 115-139.
Linda M. G. Zerilli (2008) “Feminist Theory and the Canon of Political Thought,” in Anne Phillips, Bonnie Honig and John S. Dryzek (Eds.) Oxford Handbook of Political Theory. Oxford: Oxford University Press, pp. 106–24.
R.W. Connell (2009) “Gender theory and theorists: a short global history,” in Short Introductions: Gender in World Perspective. Cambridge, Polity Press. 
Nadine Changfoot (2009) The Second Sex’s Continued Relevance for Equality and Difference Feminisms. European Journal of Women’s Studies 16(1), pp. 11-31.
Clare Hemmings (2011) Why Stories Matter: The Political Grammar of Feminist Theory. Durham and London: Duke University Press. 
Sara Ahmed (2017) "Introduction. Bringing Feminist Theory Home," in Living a Feminist Life, Durham and London: Duke University Press, pp. 1-18. You can also find a PDF copy of the Introduction at the bottom of this section.
Kimberley Hutchings and Patricia Owens (2021) Women Thinkers and the Canon of International Thought: Recovery, Rejection, and Reconstitution. American Political Science Review 115(2), pp. 347–359.
For Feminist Pedagogies, see these two excellent sources:
bell hooks (1994) Teaching to Transgress. Education as the Practice of Freedom. New York and London: Routledge. Print book available at QMUL Library.
Akanksha Mehta (2019) Teaching gender, race, sexuality: Reflections on feminist pedagogy. Kohl: A journal for body and gender research 5(1), pp. 23-30.
Finally, I would strongly recommend these edited collections for authoritative perspective on a number of issues in gender and politics:
Seyla Benhabib (Ed.) (1996) Democracy and Difference: contesting the boundaries of the political. Princeton: Princeton University Press. Print book available at QMUL Library.
Heidi Safia Mirza (Ed.) (1997) Black British Feminism: A Reader. London: Routledge. Print book available at QMUL Library.
Anne Phillips (1998) Feminism and Politics. Oxford and New York: Oxford University Press.
Mary Evans, Clare Hemmings, Marsha Henry, Hazel Johnstone, Sumi Madhok, Ania Plomien and Sadie Wearing (2014) The SAGE Handbook of Feminist Theory. London: Sage.