• since 2007 Research associate at the Institute of Material Culture at the University of Oldenburg
• Freelance trainer and coach since 2000
• 2016-2021 Research associate in the BMBF project FliF+: Development of study programmes at the Institute of Material Culture
• 2011-2016 Research assistant in the BMBF project FLiF: Research workshop "Methods of cultural analysis"
• 2006-2007 Labour mediator for employment promotion Göttingen
• 1999-2001 Head of department at the Waldschlösschen Academy near Göttingen: Departments of culture/politics and psychology/self-awareness
• 1994-1999 Museum educator, Museum Service Hamburg / Museum of Ethnology
• Studied ethnology, psychology, English and gender studies in Freiburg, Basel, Hamilton (Canada), Hamburg, Oldenburg and Bremen (PhD 2014, Diplom 2013, Certificate 2000, Magister 1996)
• Born in 1966

Authorship

• Homosexuality, cross-dressing and transgender: Heteronormativity-critical cultural-historical and ethnographic analyses. Oldenburg: "Schriften zur materiellen Kultur" (Online) see https://uol.de/materiellekultur/imkforschung/schriftenreihe-studien-zur-materiellen-kultur/publikationen (2015a).
• Struggling for Positioning - Research by and about Two-Spirits: Gay-les-bi-trans-inter-queer self-understanding in Indigenous North America. Oldenburg: "Schriften zur materiellen Kultur" (Online) see https://uol.de/materiellekultur/imkforschung/schriftenreihe-studien-zur-materiellen-kultur/publikationen (2014).
• (with Volker Weiss) Standardisation and discrimination: introductory course homosexuality and society II. Göttingen: Edition Waldschlösschen Materialien (2003a).

Editorship

• (with Barbara Paul) Queer as ...: Critical heteronormativity research from an interdisciplinary perspective. Bielefeld: Transcript(2016a).
• Understanding homosexuality: Critical concepts for psychological and pedagogical practice. Hamburg: Edition Waldschlösschen in MännerschwarmSkript (2004a).
• Emancipation and Participation: Introductory Course Homosexuality and Society III. Göttingen: Edition Waldschlösschen Materials (2004b).

Articles in scientific anthologies and journals

• From gay liberation to LGBT*I* rights and queer protests: Contested memories of Stonewall in (West) German movements from the 1970s to the 2020s. In: Revue d'Allemagne et des pays de langue allemande 53 (2) (2021)
• Pride parades by LGBT*I*/Q. Possibilities and limits of the politics of the performative. In: Paul / Tietz 2016a: 193-224 (2016b).
• Queer Pride: Normativity or Critique of Normativity? In: Volker Weiß / Bodo Niendel (eds.), Que(e)r zur Norm leben. Hamburg: MännerschwarmSkript: 40-64 (2012).
• "Holy lesbians and gays"? Homosexuality and trans identity in indigenous North America yesterday and today. In: Elisabeth Tuider (ed.), QuerVerbindungen. Interdisciplinary Approaches to Gender, Sexuality, Ethnicity. Berlin: Lit: 163-184 (2008).
• Gender stagings at Pride parades: A heteronormativity-critical analysis. In: Jutta Hartmann / Christian Klesse / Peter Wagenknecht / Bettina Fritzsche / Kristina Hackmann (eds.), Heteronormativität: Empirische Studien zu Geschlecht, Sexualität und Macht. Wiesbaden: VS Verlag für Sozialwissenschaften: 197-218 (2007a).
• The "third gender" in indigenous North America: Intersexuality, transgender and homosexuality. In: Senate Department for Education, Youth and Sport (ed.), männlich - weiblich - menschlich ? Trans- and Intersexuality. Berlin: Self-published by the editor: 103-111 (2006a).
• Queering Native North America. In: Frauen Kunst Wissenschaft 39 (= Kolleg Kulturwissenschaftliche Geschlechterstudien (ed.), Gender Memory: Repräsentationen von Gedächtnis, Erinnerung und Geschlecht): 34-43 (2005).
• Homosexuality as perversion? Historical dimensions of psychiatric, psychoanalytical and psychological concepts. In: Tietz 2004a: 9-59 (2004c).
• Gay counselling: Gay and lesbian-accepting counselling and therapy. In: Tietz 2004a: 60-91 (2004d).
• (with Elisabeth Tuider / Stefan Timmermanns) Exemplary methods for gay-lesbian-queer education and psychology. In: Tietz 2004a: 142-161 (2004e).
• (with Michael Bochow / Bastian Sanders) Die Adenauer-Zeit als zweites Trauma: Warum eine homosexuelle Emanzipation in den 1950-er und 1960-er Jahren kaum möglich war. In: Tietz 2004b: 27-44 (2004f).
• (with Rainer Marbach) Gay awakening in the 1970s. In: Tietz 2004b: 45-65 (2004g).
• CSD parades today: crystallisation or sell-out of gay emancipation? In: Tietz 2004b: 91-134 (2004h).
• (with Elisabeth Tuider) Queer Theory understandable: Critique of identity politics. In: Melanie Caroline Steffens / Michaela Ise (eds.), Jahrbuch Lesben - Schwule - Psychologie. Lengerich: Pabst: 155-168 (2003b).
• Two-Spirit as ethnic, gender and sexual identity. In: Elfriede Hermann / Birgitt Röttger-Rössler (eds.), Lebenswege im Spannungsfeld lokaler und globaler Prozesse. Münster: Lit: 127-152 (2003c).
• Gay sexuality and the longing for fulfilment: Between transgression and (self) normalisation. In: Tietz / Weiss 2003a: 59-98 (2003d).
• Between remembering, rediscovering and reinventing. The Identity Construction of Two-Spirited People as Textual Appropriation of Alternative Gender Constructions in 'Indian' Cultures of North America. In: Forum Homosexuality and Literature 39: 45-65 (2001a).
• Bend the line back into a circle: Variability and normativity of alternative gender and sexuality constructions of indigenous North American cultures in colonial change. In: kea: Journal of Cultural Studies 14 ⇐ Dieter Haller (ed.) Heteronormativity): 179-207 (2001b).
• Beyond Western concepts of identity? Alternative genders and sexualities among Native Americans today. In: Ulf Heidel / Stefan Micheler / Elisabeth Tuider (eds.), Jenseits der Geschlechtergrenzen: Sexualitäten, Identitäten und Körper in Perspektiven von Queer Studies. Hamburg: Männerschwarmskript: 162-177 (2001c).
• Die VerQueerung der "Berdachen": Umkämpfte Deutungen im Spiegel heutiger IdentitätsPolitik. In: Klaus Stehling (ed.), Queer Politics: Aufbruch zu neuen Ufern. Göttingen: Edition Waldschlösschen Materialien: 53-81 (2001d).
• Wechselseitige Blicke: Zum gegenseitigen Einfluß (sexual )wissenschaftlicher Beschreibungen alternativer Geschlechtskonstruktionen in 'indianischen' Kulturen Nordamerikas und politischer Selbstdarstellungen von Two-Spirited People. In: Ursula Ferdinand, Andreas Pretzel and Andreas Seeck (eds.), Verqueere Wissenschaft? On the Relationship between Sexology and Sexual Reform in the Past and Present. Münster: Lit: 179-196 (1998a).
• "Crooked Circles and Straight Lines": On the Change in the Relationship between Variability and Normativity in Alternative Gender Constructions of 'Indian' Cultures in North America. In: Susanne Schröter (ed.), Körper und Identität: Ethnologische Ansätze zur Konstruktion von Geschlecht. Hamburg: Lit: 101-130 (1998b).
• Diplom theses and dissertations on lesbian and gay issues. In: Ulrich Biechele (ed.), Identitätsbildung, Identitätsverwirrung, Identitätspolitik. A Psychological Assessment for Lesbians, Gays and Others. Munich: Profil: 188/189 (1998c).
• Indian life today. In: Hamburgisches Museum für Völkerkunde (ed.), Indians of the Plains and Prairies: Texts and Photographs. Hamburg: Self-published by the editor, 53-60 (1997a).
• (with Kranich, Christoph) Damit Fremdheit nicht krank macht: Konzeption für Einrichtungen zur Verbesserung der gesundheitlichen Situation von MigrantInnen in Hamburg. Hamburg: PatientenInitiative (self-published, 1993).

Introductions / Forewords in scientific anthologies

• (with Barbara Paul) Queer as ...: Negotiations of practices, knowledge and politics. In: Paul / Tietz 2016a: 7-24 (2016c).
• Preface. In: Tietz 2004a: 7/8 (2004j).
• Introduction: Historical review of the emancipation and participation of homosexual men in Germany. In: Tietz 2004b: 5-13 (2004k).
• (with Volker Weiss) Foreword. In: Tietz / Weiss 2003a: 5/6 (2003e).
• (with Wolfgang Vorhagen) On this book. In: Stefan Mielchen and Klaus Stehling (eds.), Schwule Spiritualität, Sexualität und Sinnlichkeit. Hamburg: Edition Waldschlösschen in MännerschwarmSkript: 7/8 (2001f).

Reviews in scientific journals

• Volker Woltersdorff, 2005, Coming out: Die Inszenierung schwuler Identitäten zwischen Auflehnung und Anpassung. Frankfurt/Main: Campus. In: Journal for Women's Studies and Gender Studies 26 (1): 139-141 (2008b)
• Volkmar Sigusch, 2005, Neosexualities: On the cultural transformation of love and perversion, Frankfurt /Main: Campus. In: Liminalis 2007 (online journal, currently not available, 2007b).
• Sacred Lesbians and Gays? New Publications on Alternative Sexes, Genders, and Sexualities in North American Indian Cultures. In: Annual Review of Lesbian, Gay, and Bisexual Issues in European Psychology 1: 141-151 (2001e).

• Completed: Cultural studies and academic appointments in times of Corona (teaching-learning research)
• Completed: Practices of cross-dressing (teaching-learning research)
• Completed: Two-Spirit ARTiculations: Queer Artistic Productions in Indigenous North America (Teaching-Learning Research)
• Completed: Dressing Difference: Affirmation and Subversion of Social Inequality through Dress and Body Practices in Glocalised Contexts (Teaching-Learning-Research)
• Completed: "Beautiful! Beautiful?" Cultural studies perspectives on the phenomenon of beauty (teaching-learning research)
• Completed: Homosexuality, cross-dressing and transgender: Heteronormativity-critical, cultural-historical and ethnographic analyses(dissertation 2014, summa cum laude).

Projects with students:

• Completed: "Utopoly - A game with possible worlds", in collaboration with the theatre collective fake[to]pretend and the Oldenburg State Theatre

• Specialist Society for Gender Studies
• Centre for Interdisciplinary Women's and Gender Studies CVO

• Organisation of further training and exchange on research-based learning
• Representative of the Institute of Material Culture for quality management
• Coordination of course planning at the Institute of Material Culture
• Mentoring, coaching and training: 3GO
• Transfer Gender Studies/Adult Education Academy Waldschlösschen