Rabbi Isaac of Akko

Rabbi Isaac of Akko was a Kabbalist of the School of Segovia.  He arrived in Spain, via Italy, in 1305 where he met with Rabbi Moses de Leon and learned from him the secrets of the composition of the Zohar.  His writings include a Commentary on the Secrets of Rabbi Moses ben Nachman (Nachmanides) and a Commentary on the Sefer Yetzirah (Book of Creation). His contributions can be found in the World Wisdom book, Pray without Ceasing .