As Christians we are responsible to discipline ourselves toward godliness. Here are book recommendations on spiritual disciplines.
Top Recommendation

Spiritual Disciplines for the Christian Life
Long considered a classic, this book is now in its long-awaited second edition, and it is better than ever. Whitney will help you understand and practice the most important spiritual disciplines.
Other Recommendations

Bingham shows how much of today’s spiritual formation writing borrows from traditions that are incompatible with Protestantism, and how the Reformed tradition offers better answers. It refreshed my understanding of spiritual formation and deepened my confidence in that tradition.

Habits of Grace is a powerful guide to the spiritual disciplines. It offers basic instructions to new believers while bringing fresh encouragement to those who have walked with the Lord for many years.

A short program that helps beginners learn, grow, and progress until they have established a habit that can be with them for life. Just the kind of book a church may want to keep on hand, or a mentor may want to work through with a friend.

Lundgaard brings the best of John Owen’s old work into modern times. Its purpose is to draw our attention to the triune God—not so we can admire him from a safe and comfortable distance, but so we can truly draw near.

Though written specifically for women, there is much in this book to bless and encourage any Christian reader.
(See also my recommendations on prayer and devotionals.)