Now this entire series I guess is dated - being released in the mid-80s. So in a field where the sun of human knowledge is being constantly pushed back I guess it will not take long for the information to be either superseded or even proven down right wrong - I will not get drawn in to the debate of the number of planets and should a certain diminutive lump of rock be classed as one or not (in this book it most certainly is treated as a planet for example).
However for a historical perspective (and some amazing images but this is what you would expect from TIME LIFE) this book is a great read. The concepts are easy to follow however I find it interesting how much time - and pages - are spent on each subject and planet.
Books like this I think serve a very important role - it clearly shows how the world and the human race have evolved. I was born in the early 70s, so at some point if I got my hands on this book it could have been new and revolutionary - now it is missing who swathes of human endeavour and knowledge, something that both makes me proud and in awe of. How much we have learnt and just importantly how much more there potentially is there still to learn.