Have you already mastered the basics of English, gained a basic vocabulary and are familiar with elementary grammatical constructions? So, you can start reading books in English. Of course, I do not recommend beginners to read literature in the original: even children’s fairy tales will still cause difficulties in reading. However, you can already start with simple texts.
English textbooks
The textbooks at your level contain simplified texts filled with useful words and phrases, so I advise you to start with the texts in the study guides.