It is normal for summaries to follow a similar structure, that is, to address the topics necessary for understanding a subject according to certain rules. An introduction, for example, is essential so that a summary can guide the reader. In the same way a is important to highlight the main points contained in that material.
The structure of an academic article is a good Jewelry Retouching Service model for the execution of summaries. It is that in addition to having both, introduction and conclusion, this structure generally includes other relevant points to build a complete and faithful summary of a subject.
In addition to these two topics, academic articles have chapters and each of them builds knowledge on the previous chapter. So if you're summarizing Jewelry Retouching Service a history book it might be a good idea to separate the blocks of your summary by the year or event covered, successively.
The same templates can be used for scientific and technical summaries and for deciding when each part of the subject will be addressed to make it more intelligible.