Apple shifted 350,000 textbooks from the iBooks Store within just three days of making them available, according to a new report.

Last Thursday Apple took the wraps off iBooks 2 at an event in New York's Guggenheim Museum where it promised to 'reinvent' textbooks. 

According to Global Equities Research and picked up by AllThingsD Apple has shifted some 350,000 textbooks from the iBooks Store within the first three days of availability.

Hands on with iBooks Author

However, Global Equities Research isn't exactly forthcoming when it comes to explaining how its proprietary tracking system came up with that number, but also claimed that 90,000 copies of iBooks Author, a textbook creation tool launched by Apple alongside iBooks 2, had been downloaded in that time.

Analysis: Apple's e-textbook push earns mixed grades

Textbooks created in iPad Author are only available for the iPad and not on other iOS devices or Mac OS X at this time.