Plagiarism is the use of another's work (including your own previous work) without clearly indicating of the source of the information. Another's work doesn't just mean their words it also covers their ideas, images, statistics, data, etc.
Plagiarism may be deliberate or accidental - you should avoid both types.
- Deliberate plagiarism is when you purposely set out to copy someone else’s work.
- Accidental plagiarism is when you don’t correctly acknowledge someone else’s work, either because you didn’t know how to or you didn’t know you had to.