Minha Tehora by Rav Danny Wolf '75, Ram in the Yeshiva. The book is well-organized and provides a clear and thorough introduction to Sefer Taharot. It will also be of interest to those with more knowledge of these topics and includes two chapters with practical halachic applications - visits by kohanim to concentration camps and flights over cemeteries. Published by Yeshivat Har Etzion. To order: office@etzion.org.il

The Poetry of Prayer: Tehillim in Tefillah, by Rabbi Avi Baumol '88,  published by Gefen, originally a Virtual Beit Midrash shiur.

Often we find it difficult to concentrate on the prayers we recite due partly to a lack of understanding of the biblical poetry in the tefillot. This book aims to unlock the mystery of the various tehillim which comprise the tefillah.

Fresh Fruit and Vintage Wine, The Ethics and Wisdom of the Aggada, by Rav Yitzchak Blau '86, co-published by KTAV, the OU and the VBM.

While legal sections of Talmud constitute the bedrock of Jewish life and religious practice, aggadic sections explore the rich world of Jewish ethics, psychology, wisdom, philosophy, and theology. The writing is lively, engaging the mind and elevating the soul, and the unfolding meaning is a profound and original experience of Torah study.

Originally a VBM course, 20% discount if you order from this link: http://www.ktav.com/product_info.php?products_id=2323&aff=ral

The Three Pillars Am Yisrael, Torat Yisrael, Eretz Yisrael: The Foundations of Judaism as Revealed in Sefer Devarim by Rav David Milston '83, published by Midreshet HaRova.

The 13 Middot of Mercy: On the Existence of Man (Hebrew) by Rav Ezra Bick, Ram in the Yeshiva and head of the Virtual Beit Midrash.  The book is based on a series of shiurim given in Elul over the years by Rav Bick to talmidim in the Yeshiva. Rav Bick notes that the sefer is the fruit  of discussion and feedback from his talmidim as it says: "Mi'talmidai yoter me'kulam." A book-launching was held Erev Yom Kippur with the participation of Rav Beni Lehman, Prof. Shalom Rosenberg, Rosh Yeshiva Rav Yaakov Medan and Rav Bick at the Ramban Shul in Jerusalem. The evening program was in memory of Aliza Kahn z"l to mark her first yahrzeit (15 Tishrei). To order: office@etzion.org.il

Articles by Harav Aharon Lichtenstein - The most recent Alei Etzion consisted entirely of articles by Harav Aharon Lichtenstein - http://www.haretzion.org/alei.htm. There is a complete Rav Aharon Lichtenstein bibliography online (with hyperlinks to many articles) which will be updated a couple of times each year: http://etzion.org.il/vbm/archive/Bibliography-web.htm.