Your textbook discusses four kinds of informative speeches: speeches about objects, concepts, processes, and events.

True.

Explanation:

Informative speeches are the speeches in which a piece of information is communicated to the audience.

There are four types of informative speeches:

Speeches about concepts. Speeches about events Speeches about processes Speeches about objects.

Speeches about Concepts involves the information related to certain concrete ideas relatable and understandable to the audience.

Speeches about events include information related to certain events and details about this event such as date, time, venue, and the purpose of this event.

Speeches about Processes includes information related to a process, like how a certain product was made, how it can be used and how it works.

Speeches about Objects includes information about an object.