A sampler can be any of the following things:

• In general, a sampler is any broadly representative cross-section of some collection; for instance, food products are sometimes packaged in samplers containing a variety of chocolates or beers.
• In music, a sampler is an electronic musical instrument that uses stored audio recordings called samples.
• In information theory, a sampler is a device that samples a continuous signal and will result in a discrete signal if all dimensions are sampled.
• In needlework, a sampler is a handstitched piece of embroidery used to demonstrate skill in needlework and mastery of a range of stitches.
• In a sampler quilt, each quilt block is constructed using a different pattern. The article Pressed flower craft shows a sampler made using real flowers and petals.