See this online ebook:

  • Lawrence S. Mayer, M.B., M.S., Ph.D. and Paul R. McHugh, M.D., Sexuality and Gender: Findings from the Biological, Psychological, and Social Sciences, in The New Atlantis, Number 50 (Fall 2016): pp. 1-143. May be read online, and available in pdf format, at The New Atlantis.

See also these related ebooks and texts:

  • Amicus Curiae Brief in Joel Doe et al., V. Boyertown Area School District et al., by Drs. Miriam Grossman, M.D., Paul Hruz, M.D., Ph.D., Michael Laidlaw, M.D., Quentin Van Meter, M.D., and Andre Van Mol, M.D. Available in pdf format at Supreme Court of the United States.
  • The End of Gender: Debunking the Myths about Sex and Identity in Our Society, by Debra Soh, Ph.D. (New York, London, Toronto, Sydney, New Delhi: Threshold Editions, 2020). The ebook and printed book may be purchased at Barnes & Noble.
  • “What Many Transgender Activists Don’t Want You to Know; and Why You Should Know It Anyway”, by J. Michael Bailey and Kiira Triea, Perspectives in Biology and Medicine, Volume 50, Number 4 (Autumn 2007): pp. 521-534. May be purchased at Project Muse and may be read at ResearchGate.
  • When Harry Became Sally: Responding to the Transgender Moment, by Ryan T. Anderson (New York: Encounter Books, 2018). The ebook and printed book may be purchased at Barnes & Noble.

On the occasion of the secular observance of the International Transgender Day of Visibility. For other texts and ebooks, you may access the List of Free eBooks (Arranged by Title), the List of Free eBooks (Grouped by Subject), the List of Worth-It Catholic Books & eBooks, and the main page of the Catholic eBooks Project.

“When God created human kind… Man and woman both, he created them, and gave them his blessing” (Genesis v, 1-2)

But from the beginning of the creation, God made them male and female. For this cause a man shall leave his father and mother, and shall cleave to his wife.” (St. Mark x, 6-7)