A Daily Dose of Torah. This is a series of 14 volumes. Author is Yosaif Asher Weiss. Each volume covers four weeks of torah study. The books are probably best used by Orthodox Jews as there is a great deal of discussion about the Mishnah and how the various rules are to be observed, etc. To non-jews these books might be of interest as they provide some insight to what Judaism is all about. I have read only volumes one through six. ISBN 1422601390.

50 Philosophy Ideas by Ben Dupre. ISBN 978-1847240064. This book presents 50 short discussions on various philosophical topics. Wikipedia has many good discussions like those in this book.