What is the definition of Zuhd (asceticism), how can it be applied in the present time, and what books do you recommend reading on this subject?

Zuhd (asceticism) is abandoning what is of no benefit in the Hereafter, or emptying the heart of worldly attachments. It can be achieved by frequently contemplating the texts of revelation that illustrate the transience of this world and the greatness of the recompense in the Hereafter, and by realizing the importance of charity. It is recommended to read the Qur’an, and the books Riyadh al-Salihin and Al-Targhib wal-Tarhib, and to read about the lives and sayings of ascetics, such as the book Madarij al-Salikin.