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OpenStax: Textbooks
OpenStax offers free textbooks to all types of students, making education accessible and affordable for everyone.
You will find books on the topics:- bookkeeping;
- economy;
- management and marketing;
- nursing;
- Sciences;
- human Sciences;
- math; …
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Music Masterclasses: Complete method piano and music theory
Complete music methods are offered on the Music Masterclasses website. It is a combination of free and paying lessons. An overview of all courses can be found here .
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