Initial Coin Offerings (ICO) is one method of raising funds applied to blockchain projects. Coin/token developers originally used the term ICO, (IPO on shares). and selling their coins/tokens to retail investors, in general investors also get returns from staking and airdrops and capital gains if their new coin/token projects are successful. The advantage of investing in ICO, buying at pre-release prices are still cheap, but not for long-term investment. Disadvantages of ICO, many ICO developers are scammers, funds collected from retail investors are often taken away. So at the moment, ICO projects are not trusted by investors.