Item — HN Reader

13+ ? What about DK? Some series may be suitable for that age. A lot of graphics!

---Others advertised for Age 8-12

Thank you. A lot of good options here. Any specific order that you would recommend?

Not really.

They are more like collections of reference articles and graphics to flip through and maybe someday read, but in no particular order.

And I'm talking between books too, not just within them: does economics come before biz ? IMO No. They are more like parallel than serial.