STTI Books

Books by Sigma

Sigma publishes a variety of career, scholarly, and inspirational books written by nurses for nurses. Two Sigma books published in 2020 were recipients of AJN Book of the Year awards. Sigma books are available for purchase from Sigma Marketplace and at bookstores everywhere.



Journal of Nursing Scholarship

Sigma's scholarly research journal is one of the most widely read and respected healthcare journals internationally. 2020 Impact Factor of 3.176. Free access is available for all Sigma members via this website or our mobile apps.

Worldviews on Evidence-Based Nursing

A peer-reviewed, evidence-based nursing journal and primary source of information to improve patient care. 2020 Impact Factor of 2.931. Free access is available for all Sigma members via this website or our mobile apps.

Resource Center


Nursing Centered

Reflections on Nursing Leadership is now Nursing Centered! Meet your new online resource center, home to Sigma articles, member stories, videos, webinars, and SigmaCast episodes.