Sharma Mahesh 
Divine Teachings of Rig-Veda [EPUB ebook] 

The Vedas are the oldest scriptures in the world. The entire lifestyle of Hinduism is based on the Vedas. The Vedas have solutions to every man’s problem, including Brahma, the universe, astrology, mathematics, chemistry, medicine, nature, astronomy, geography, history, and Hindu customs.
In the Vedas, the gods are addressed to Lord Indra, Agni, Vayu, Vishnu, Prajapati, Surya, etc. These scriptures are the storehouse of intact knowledge. Their sutras are filled with life-nectar, which can only give living being immortality.