Stare at this image for two minutes every day, morning and evening, and you will significantly improve your concentration.

As a result you will also improve your memory, says Frank Felberbaum, coach of the USA Memory Championship team. He recommends using a mandala — a concentric design, like the one seen above, often found in Eastern religious art. “Try having the TV on and then looking at the mandala [while] trying to block out the program,” he recommends. “After six weeks, your concentration will increase 20 to 25 percent.” And you really need it.

The average human attention span has fallen from 12 seconds in 2000 to eight seconds in 2016, thanks to our reliance on technology — and our memories have taken a hit, too.

“Most people will admit their memory isn’t good, but they complain about it,” says Felberbaum. “But memory is a process — if you can control the process you can control your memory. All you need are the right techniques.”

On Saturday Felberbaum will be teaching some of these methods at the Rubin Museum, transforming the space into a “memory palace” — a mental device employed by ancient Greeks to remember oratory and by Benedict Cumberbatch’s Sherlock Holmes to solve mysteries — that will allow visitors to retain all the information and images they come across.

“The idea is to go back to your office or go home and, when you close your eyes, experience your visit all over again,” says Felberbaum.

The process requires visualizing a structure, like your home, and populating it with information to retrieve later. For example, when you’re running errands after work, mentally walk through your space and see a chicken in the bedroom (pick up rotisserie) and ballet slippers dancing out of your drawer (get cash to pay your friend for tickets to a dance performance).

“You don’t need to be born with amazing visual recall,” Felberbaum says. “Just practice, internalize it, and eventually it becomes part of you.” Here are a few more puzzles that will help you become a memory master.