The following video defines the key terms explicit and implicit, as they relate to thesis statements and other ideas present in what you read.  It also introduces the excellent idea of the reading voice and the thinking voice that strong readers use as they work through a text.

To help keep you on your toes, the author of this video challenges you to find her spelling mistake in one of her cards along the way!

According to author Pavel Zemliansky,

Arguments then, can be explicit and implicit, or implied. Explicit arguments contain noticeable and definable thesis statements and lots of specific proofs. Implicit arguments, on the other hand, work by weaving together facts and narratives, logic and emotion, personal experiences and statistics. Unlike explicit arguments, implicit ones do not have a one-sentence thesis statement. Instead, authors of implicit arguments use evidence of many different kinds in effective and creative ways to build and convey their point of view to their audience. Research is essential for creative effective arguments of both kinds.

Even if what you’re reading is an informative text, rather than an argumentative one, it might still rely on an implicit thesis statement.  It might ask you to piece together the overall purpose of the text based on a series of content along the way.