Help please

Hello there, I dont really know much about aviation but I need some help

recently my Grandfather passed away and has left me a collection of magazines called

The history of aviation

there are around 70 copies, I think a few may be missing but all are in as new condition

Can anyone please tell me if these are worth anything and wheather I should get them insured?

He has also left me a german aircraft magazine which is around 60 years old

I will post the name of this to see if any of you reconise it!

Thanks