the purpose of going public are mainly for liquidity, value, access & to attract everyone associated with a company.
Liquidity
Investing in a public company is much more acceptable by investors then private firms and is a great way for present owners to divesture of their investment.
Value
Public companies are often worth more then private firms. Public companies can experience remarkable growth through stock appreciation.
Access
A public company has a higher level of access to capital markets and other resources needed for growth. Stock can be used for direct acquisitions.
Attract
Stock is a component that can be used to attract key employees needed for the growth of the company.
Liquidity - Investing in a public company is much more acceptable by investors than private firms.
Value - Public companies can experience remarkable growth through stock appreciation. 
Access - A public company has a higher level of access to capital markets and other resources needed for growth. 
Book Building is basically a capital issuance process used in Initial Public Offer (IPO) which aids price and demand discovery 
we offer the best IPO expertise to help your company go public, since 2006 many companies have benefitted our expertise in venture capital raising, business plan drafting & legal matters.. 
IPO Consulting involves a turn-key kind of solution to all your company's IPO needs, as in itself IPO means the new offer of a company's shares to the public in the country's capital markets. Initial Public Offer