Answer:
Its title means book.
When liquid splashes me, none seeps through. When I am moved a lot, liquid I spew. When I am hit, color I change. And color, I come in quite a range. What I cover is very complex, and I am very easy to flex.
I'm not man's best friend, I'm their enemy, I can mark your end, yet you do not see me, I am very small, but very tough, If you have me, then you have it rough.
Has no feet, but travels far. Is literate, but not a scholar. Has no mouth, yet clearly speaks.
Scythe of darkness, Shadowβs light. Guiding eye of thirteenth sight.
A word of five letters, Upside down is the same, A shark does this, But itβs not to blame. What is the word?