Table 2.3 not only gives an overview of the variety of coastal forms but also presents real-life examples. The table distinguishes between 1) primary coastal forms (deltas, estuaries, plains and flats, and barrier and lagoon coasts); 2) secondary coastal forms based on the influence of wave action and tidal action and 3) sediment rich and sediment poor systems. For each resulting class, an example is given and linked to the ternary diagrams of Fig. 2.43. The latter includes the triangular classification diagram of Fig. 2.44. The characteristic morphologies listed in Sect. 2.7.1 can also be positioned in the ternary diagrams of Fig. 2.43.