Dear applicant when it comes to learn beginners English book you can refer to your own grammar text books or there are plenty other good books available on the website of Amazon or Flipkart. Like there is a beginner's book written under the title of Cambridge University, author is Raymond Murphy. Not Only that there is one vocabulary skill book available on Flipkart published by Arihant Publication and there are other books too which you can follow but if it's from any foreign publication, it would be more feasible.
Good luck!!
There are various books which you can study for preparation and development for English knowledge as a beginner. I am mentioning the name of top books for English knowledge:
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile