Is Yusupov's books worth the time/effort?

I have been working with his Buildb up your Chess, the fundamentals. Vol 1. It is not an easy book and very time consuming. Have any of you worked thru this book? Do you think it is worth the time? Stwils.

I haven't read it, but IM Attila Thurzo has it in his top 5 books (I think 4th) so it can't be bad

I have this book too!

I believe the book is for people rated 1400+

What i like about it is that it mixes tactics with position skills. Endgames AND openings skills, etc. It is a mix of everything, but not nothing. 

 For instances: Chaptor 3 is called "basic opening principles" (opening, duh) while chaptor 4 is "Simple pawn endings" (endgame!), chaptor 5 is "double check" (tactics!) and then somehow chaptor 6 is "the value of pieces" (basic chess principle. You wonder why it is not the first? because in this chaptor he mostly shows that the value depends on the position. Aka a pawn can be worth more on the 7th rank in the endgame, as you already knew from chaptor 4). What i like about this is that this chaptor really feels intuitive after the first few chaptors. 

He keeps a structure like this in the rest of the book: each chaptor being different from the chaptor before.

You go from tactics to strategy to endgame to opening to position etc.He does this to make sure you don't get any gap in your chess skills. At the end of each chaptor he gives excercises you need to solve in a certain time period. According to a rating system, you can see if you actually understood and can apply what he tried to learn you. If i fail horrible, i know what i need to improve. 

That being said, alone, this book alone IS nothing. It touches many subjects but it leaves even more subjects untouched. That's why it is only volume 1 and you need the entire series too close all the gabs. Together, (i only own this book) they are regarded as one of the best training material and have won several prizes.

I think i can see why. Because every chaptor is different from the one before, i don't get really bored with it as I might have with a book exclusive about the endgame.

I also found it hard, but that is proberly because of my rating (i don't have one, so it is proberly low, my chess rating here is all i have).

But i think that is the point. To make you think. Challenge you to think. If you study it well and go through all the variations on a real chessboard, i'm positive you can make every test. I think each chapter takes around 2-3 hours with 24 chapters.

To come back to your question: for me, this book is worth the time.    

My lay out looks funny. My lines leave the post and on and disappear at the right side of the screen. Is this just on my computer?

no, also on my screen