To Bless Your Book of Shadows

You will need:

A Blue Candle
A Purple Candle
A Red Candle
A Green Candle
A Yellow Candle

Directions:

Whether your BOS is a heavy-bound journal, a small personal diary, or a 3-ringed notebook, this spell will guard your book and enchant its pages.

On the night of the Full Moon, cast your circle and place your BOS on your alter.

Situate 5 candles (Purple, green, yellow, red, and blue) around your book in a rough pentagram shape.

If you see fit, you can place the candles in their correct positions:

Purple
Blue ~ Green
Red ~ Yellow

Light the candles, starting with the purple and ending with the blue, and say this or another verse:

By the powers of center (north, south, east, west),
The forces of spirit (earth, air, fire, water),
I bless and protect this Book of Shadows From all unwanted forces and beings.

With your power hand, athame, or wand, draw an invoking pentagram on your BOS's cover and say:

May no unprepared eye or hand behold this Blessed Book of Power.
Ancient Mother, behold this book.
Guard and bless its pages. Ancient Father, behold this book.
Guard and bless its pages.
By the powers of the Moon and stars above me.
So shall it be.

With this, the ritual is done. Some chose to bury the candles. Others choose to use them for another spell. It's your choice what you do. It is recommended that this spell is done for the 4 sabbats to mark your progress and increase in power, but it also can be done once a year on that same month's Full Moon.