This book was especially good for me after playing "classic Traveller" for years and then being overwhelmed by the complexity and realism of Megatraveller. This book seems to bring all of the branches of Traveller (even GURPS) into one recognizable form. That fact that this work was completely written by one person has allowed it to be more organized than previous versions. The GURPS and T20 systems really suffered when they got rid of the UPP and the UWP. T4 not only brings these back, it also brings in a complex ship designing system (that is something that would have ve been nice if there was such a resource for MT. I give this game my full support, but I still wonder why a product compiled by a team ( MT, TNE, T20) can be bested by a single work written by a single designer.
[5 of 5 Stars!]