Suggested for intermediate level students of all ages
 
This book is a great resource for both building finger strength and learning how to get around the piano through various patterns. Some may notice that this book is a simplified version of the regular Hanon exercises, so once a student is ready they can advance to that version (link here). A great feature of this book is that each exercise specifies what fingers are worked on so an individualized plan can be created depending on a student's needs.