Holy Quran is a highly Revered and Sacred Book Allah SWT. It is the 4th and Final Heavenly Manuscript that was revealed upon the Last Prophet, Hazrat Muhammad ﷺ over the period of 23 years. It holds distinction in itself from all books of rest of the world in being the written by the Almighty Lord Himself, Who says:

“Indeed, it is We, Who sent down the Qur'an and indeed, we will be its guardian. [Quran, 15:9]

In the above mentioned Ayah, the Creator of the universe says that He is the One, Who is the Sole Author of this great form of Revelation and He will protect it. That is the miracle of Furqan e Hameed that even after 1400 years, there has not been alteration of a single letter or word in this Blessed Volume unlike previous religious books which have changed over the course of time.
Since, Allah SWT is Himself the Architect of these Saintly Instructions, therefore, its recitation requires adopting a great deal of Adab (Etiquettes) from us Muslims. Some of the essential manners of reading the Holy Quran are described as under:

i) Being in state of cleanliness and Wudu
Before handling this Sacrosanct Scripture, one must have maintained a condition of complete purity in terms of both clothes and Wudu (Ablution) which is the prerequisite of every religious action.

Indeed, it is a noble Qur'an. In a Register well-protected; None touch it except the purified. [Quran, 56: 77-79]

This Quranic verse emphasizes on the great honor of this Sacred Book which calls for showing tremendous amount of respect to it.
Note: There is exception to the rule of Wudu only when someone is not carrying Furqan e Hameed in its hands and reciting the Holy Verses from its own memory.

ii) Sitting in a Respectable Place and Respectful Manner
Since, this is not any normal kind of book as the Quranic lines have descended from the Heavens, so one must pay due reverence to it by sitting in a decent and upright place. Besides, one must also sit down in a considerate and reverent fashion while gripping the Holy Quran in its hands so as to fulfill the required level of high opinion for this Hallowed Volume by action.

iii) Placing the Quran on a Pillow
A great deal of care should be taken while placing the Holy Book of Allah SWT by resting it on a neat and clean pillow or other support and avoid putting it on the floor because of its extremely high status.

iv) Holding the Sacred Book in Right Hand
By fulfilling the Sunnah of the Holy Prophet ﷺ, one should hold the Holy Quran in its right hand to show due admiration to it. Narrated by Hazrat A`ishah (R.A):

"The Prophet PBUH used his right hand in applying perfume, in eating, and used his left hand in the toilet or when removing any harm." (Abu Dawood)

It means that Rasulullah ﷺ always utilized His right hand while doing any hasan (good) work and used His left hand in accomplishing other acts. Therefore, one must use its right hand while handling and reading the Sacred Verses of Furqan e Hameed.

v) Reading “Tauz” and “Tasmia” before starting Recitation
One must read “Tauz” prior to the beginning the recital process in the following way:

“Audhu Billahi mina-Shaitan-nir-Rajeem”
Translation: “I seek refuge with Allah from Satan, the Accursed.”

Since, reciting the Holy Quran requires great attention and concentration level; therefore, every Muslim is advised to speak the above mentioned prayer to the Almighty to save it from Shaytan.
In addition to Tauz, one must also read “Tasmia”, which is given below:

“Bismillah ir-Rahman ir-Rahim”
Translation: "In the name of God, most Gracious, most Compassionate.”

This form of Veneration of Allah SWT is necessary act to perform because He is ever Merciful and Generous, Who forgives one`s sins and grants from His Blessings without any count.
Note: Both these must-do steps needed to be accomplished before starting the recital process of Furqan e Hameed no matter one is commencing from start of a Surah or in between.