1) The document presents sketches and examples of different types of analogies used in architectural theory and design, including biological, romantic, mechanical, mathematical, and linguistic analogies. 2) Biological analogies include general organic forms inspired by nature as well as more specific biomorphic concepts like floating cities inspired by lily pads. 3) Mechanical analogies view buildings as machines that simply express their function, while mathematical analogies use geometry and modules as a design basis. 4) Linguistic analogies explore buildings as expressions of attitudes or signs that convey information through their form.