Well well ,
1_the reason why i leave social media
2_deep work is valuable but missing
3_Live life free from all stresses

Go for it

It's a wonderful book
1- i can learn anything but not everything
2- easy to understand
3-higly recommend for students ( any age can get benefits)
4-powerfull tips to improve our memory as well as observation
5- good memory doesn't mean that you can remember for long periods of time you have to revise

Highly recommended ( The Memory Book) from harry lorayne

Go for it