You need silk touch to obtain a chiseld bookshelf if you use a normal tool, you get nothing
Linked issues
is duplicated by 5
MCPE-172093
Chiseled bookshelf isn't dropping the item when broken
Resolved
MCPE-181097
Chiseled bookshelves not dripping when broken
Resolved
MCPE-187555
I don’t get my chiseled bookshelves back after I mine them
Resolved
MCPE-220955
Chiseled bookshelfs not dropping when you break them
Resolved
MCPE-224619
Chiselled bookshelf wont drop when destroyed by hand and axe
Resolved
Thank you for your report!
However, this issue is Working as Intended.
The report you have submitted is working as intended: This behavior is consistent between Java and Bedrock Edition. .
Please note, that mechanics of the game may change between updates.
Things such as graphics, sounds, world creation, biomes, redstone, villagers, and animals may not work the same in current versions.
Full Version History – Snapshot Version History – Feature Requests and Suggestions
Quick Links:
📓 Bug Tracker Guidelines – 📧 Mojang Support
📓 Project Summary – ✍️ Feedback and Suggestions – 📖 Game Wiki