You break a block that you are pointing at when you open a book and quill, or just reading a signed book. This only seems to happen when you are in creative when blocks break easily or you are pointed at a block that breaks instantly and it only happens if the book and quill has been opened before.
I am using an iPad Pro
Thank you for your report!
However, this issue has been closed as a Duplicate of MCPE-29752.
Your additional information and observations are very useful, so if you can add them to the comments section of the parent issue it would be appreciated.
If you have not, you might like to make use of the search feature before making a new ticket, as it's likely that the issue has been reported already.
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