Looking to build abs fast? This article provides a list of highly effective exercises that can help you achieve that goal. The first exercise is the bicycle crunch, which targets the upper and lower abs. Next is the captain's chair leg raise, which strengthens the entire core. Planks are also recommended as they engage multiple muscle groups. The article suggests incorporating other exercises such as Russian twists and reverse crunches to further maximize ab development. By consistently performing these exercises, you can quickly build strong and defined abs.