Yes. It is an excellent resource for building mathematical maturity. It bridges the gap between high school calculus/geometry and rigorous university analysis/linear algebra.
The original Russian edition and the Mir Publishers English translation are technically under copyright. However, because Mir Publishers is defunct and the book is out of print for over 30 years, many academic archives treat it as abandonware. In practice, copyright enforcement is nearly zero, but you should be aware that downloading a scanned PDF without permission is a legal gray area. problems in mathematics by v govorov pdf
Each problem gets a collapsible Hint card: Allows instant navigation: “Go to problem 3