This looks like a nicely made spell tome with rich dark leather and metal bindings and reinforcements. A small pouch is located on the back of the book.  An inscription on the spine reads "Knowledge for the Knowledge God, Spells for the Spell Tome".  Any attempts to carve into the book or pages are worthless as the book will repair all damage done. When unattuned, all the pages are blank and absorb any ink used to write in it. When attuned however, the wizard can access all notes, spells, or writings of any type written into the book by previous attuned wizard. The Tome never runs out of pages. The Wizard need only think of something and the tome's pages will turn and show the Wizard all available information is has pertaining to that thought. (ie. the wizard thinks sword, and the tome will show any and all pages it has containing sword information).The Tome has an intense thirst for knowledge. A wizard feels empowered and focused when writing in its pages and becomes able to write twice as fast. The pouch on the back feels empty to the unattuned, but attuned wizard may pull components out of it. Lastly, the tome can magically secrete fine ink from its pages allowing a wizard to write as he pleases.

-The Wizard attuned gets advantage on all knowledge checks (medicine checks are optional) as the tome contains centuries of information regarding random knowledge, and shows the Wizard that knowledge with a thought.

-The Wizard attuned is the only one who sees the spells or writings, others will think its an empty book. The components pull from the pouch on the back can be pulled at will if they do not have a monetary value, but if the spell requires monetary valued items, they may pull them at the cost of 1 charge per 100 gp. (if the cost is in between, then you use the next highest charge count regardless of cost. Ie. a gem of 101gp uses 2 charges). Components pulled from the pouch will only last 10 min pulled the pouch, and unused charges will be absorbed back into the tome.

-The tome has endless pages.

-Due to the spells thirst for knowledge, Spells take half the time and cost to put into the book.

The tome has: 20 charges

Notes: Advantage: Arcana, Advantage: Nature, Advantage: History, Advantage: Religion, Advantage: Medicine, Wizard