The following are books I am just reading or re-reading and recommend. Each might have a note or so and this section will change continually.
Boston Lesbian Psychologies Collective. Lesbian Psychologies; Explorations and Challenges. Urbana, IL: University of Illinois Press. ISBN: 0-252-01404-9."The Lesbian couple relationship is probably the most intense of all romantic relationships and the most egalitarian."
"...individual lesbians in couples must spend time deciding how to establish themselves as a family."
"If the lesbian chooses to be out, her family's initial reaction may be to ignore her statement, or to banish her from the family."
"The overt and covert fear of lesbians in our society is conveyed to all of us at an early age in many ways."
"...the mere existence of lesbians -- women who succeed in living relatively apart from men -- is too threatening to the patriarchy and to heterosexual women."
"For women, sexuality may be an aspect of identity that is fluid and dynamic as opposed to fixed and invariant."
It has been suggested that there is a 'lesbian continuum'.

Jones, Billy E. MD. MS. and Marjorie J. Hill, Ph.D. eds. Mental Health Issues in Lesbian, Gay, Bisexual, and Transgender Communities. Washington, DC: American Psychiatric Publishing, Inc., 2002. ISBN: 1-58562-069-6.
… –the LGBT Community– used to symbolize a group of individuals…there are in fact four communities. Each community is different – not only from the heterosexual community but from each other—and in some ways unique. In addition, each community is diverse.” p. xviii.
“They discuss normal adolescent development and the extra challenges imposed by the development of a sexual identity that is different from that of most of their peers.” p. xix.
“Sexual identity is seen as only a part of one’s overall identity and not the defining characteristic.” p. 3
“…some adolescents withdraw physically and emotionally from those around them. In a 1987 study, Hetrick and Martin discovered that the major reason for seeking mental health services was a sense of isolation from family and peers.” p. 4

Beemyn, Genny. and Susan Rankin. The Lives of Transgender People. New York: Columbia University Press, 2011. ISBN 978·0·231-14307-3 (pbk). 978-0-231-51261-9 (e-book).
“…respondents who self-identified as cross-dressers were substantially older on average thatn other transgender people surveyed…..”p.ix.