Excellent recommendation; they are very good books to start with. Concepts are clearly explained and I wish every mathematics textbook was structured like this.

Excellent recommendation; they are very good books to start with. Concepts are clearly explained and I wish every mathematics textbook was structured like this. Some people are biased against these books because they're Soviet, but I find that attitude parochial. If we're judging textbooks on their merits alone, these will get you to Calculus.