journal experience through books

Books can be used to save experience orbs. Reading the book gives you that knowledge/experience.

Instead of the experience from an activity going into you it goes into a 'journal' you carry with you. When you read the book the experience is transferred to you. This can only be done once for each book you have 'written' and you must spend time reading the book. The time spent reading is in direct proportion to the experience saved within the book and if you are interrupted the book must be read again from the beginning. Partial reading is not allowed, neither is speed reading using potions, etc. If the book is destroyed so is all its experience.

Say one book from an afternoons monster hunting takes 3-4mins to read (real time - an afternoon in minecraft).

During reading you cannot do anything else but read. 

A nice comfy armchair might help.