- Typically all books of the lives of the saints that are well-written and detailed for e.g. Books 1 – 6 of the Coptic nun Tamav Erini (-2006) which you might be able to order from here; the life and sayings of Elder Mettaous El Sorianni (-2008) available here, the life of Tamav Kereya Iskander ( -1980) available here or here;
- PDF books about a few Coptic saints can be found here including Fr Faltaous El Sorianny, Bishop Makarios of Qena and St Kyrillos VI.
- The Arena: Guidelines for Spiritual and Monastic Life by St Ignatius Brianchanninov: I think this is perhaps the best introductory book in existence on Orthodox asceticism/spirituality.
There are tonnes of extremely well-written and detailed books to read of the lives of Russian and Greek saints as well as their teachings. I haven’t read too many of them. I much prefer reading articles. You can check out St Nektarios press or find a local Russian or Greek Orthodox bookstore.
I recommend you take a look at my articles section first and if an article takes your fancy, you can then go look on amazon for a book about the life of that saint if you are reading an article about a saint’s life; or find a book written by the saint or author who wrote that article if you are reading an article written by a saint or a particular good author.