We solved each problem with as much details as nessesary.
We are creating ebooks in more formats and also we are offering paper books in major languages.
We are doing small changes in books based on feedback and development all the time. Adding or replacing problems, removing typos or smoothing problematic parts.
Step by step method allows you to learn problem solutions easier, faster and without additional work.
We are creating books in more than influential languages. We are currently working on 10+ translations.
We are getting new ideas from our readers. This is allowing us to create better books, text and apps.