New skill-books updated in Skill Book Store

Ok how are we supposed to know who's books were added if we don't even know the last ninja skillbooks that were previously added? Please be more elaborate and give more details.

Mount Myoboku's Grasp and Myoboku's Training added in the Groceries Storage Room

How do we go from 150 gifts with daily 15 replenishment to 10 grasps and training items with 10 daily replenishment?