The word(s) "book" appears 178 time(s) in 160 verse(s) in Quran in Mohsin Khan translation.

(41) The Messiah ['Îsa (Jesus)], son of Maryam (Mary), was no more than a Messenger; many were the Messengers that passed away before him. His mother [Maryam (Mary)] was a Siddiqah [i.e. she believed in the Words of Allah and His books (see Verse 66:12)]. They both used to eat food (as any other human being, while Allah does not eat). Look how We make the Ayat (proofs, evidence, verses, lessons, signs, revelations, etc.) clear to them; yet look how they are deluded away (from the truth).

(42) There is not a moving (living) creature on earth, nor a bird that flies with its two wings, but are communities like you. We have neglected nothing in the book, then unto their Lord they (all) shall be gathered.

(43) They are those whom We gave the book, Al-Hukm (understanding of the religious laws), and Prophethood. But if these disbelieve therein (the book, Al-Hukm and Prophethood), then, indeed We have entrusted it to a people (such as the Companions of Prophet Muhammad صلى الله عليه وسلم) who are not disbelievers therein.

(44) They (the Jews, Quraish pagans, idolaters) did not estimate Allah with an estimation due to Him when they said: "Nothing did Allah send down to any human being (by revelation)." Say (O Muhammad صلى الله عليه وسلم): "Who then sent down the book which Musa (Moses) brought, a light and a guidance to mankind which you (the Jews) have made into (separate) papersheets, disclosing (some of it) and concealing much. And you (believers in Allah and His Messenger Muhammad صلى الله عليه وسلم) were taught (through the Qur'an) that which neither you nor your fathers knew." Say: "Allah (sent it down)." Then leave them to play in their vain discussions. (Tafsir Al-Qurtubi).

(45) And this (the Qur'an) is a blessed book which We have sent down, confirming (the revelations) which came before it, so that you may warn the Mother of Towns (i.e. Makkah) and all those around it. Those who believe in the Hereafter believe in it (the Qur'an), and they are constant in guarding their Salat (prayers).

(46) Thus We explain variously the Verses so that they (the disbelievers) may say: "You have studied (the books of the people of the Scripture and brought this Qur'an from that)" and that We may make the matter clear for the people who have knowledge.

(47) [Say (O Muhammad صلى الله عليه وسلم)] "Shall I seek a judge other than Allah while it is He Who has sent down unto you the book (the Qur'an), explained in detail." Those unto whom We gave the Scripture [the Taurat (Torah) and the Injeel (Gospel)] know that it is revealed from your Lord in truth. So be not you of those who doubt.

(48) Say: "With Allah is the perfect proof and argument, (i.e. the Oneness of Allah, the sending of His Messengers and His Holy books to mankind); had He so willed, He would indeed have guided you all."

(49) Then, We gave Musa (Moses) the book [the Taurat (Torah)] to complete (Our Favour) upon those who would do right, and explaining all things in detail and a guidance and a mercy that they might believe in the meeting with their Lord.

(50) And this is a blessed book (the Qur'an) which We have sent down, so follow it and fear Allah (i.e. do not disobey His Orders), that you may receive mercy (i.e. be saved from the torment of Hell).