この本は難しすぎて

this book is too difficult to

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this book is too difficult to この本は means “this book,” 難しすぎて means “being too difficult” and connects to the result that follows. The following phrase typically explains what cannot be done because the book is too difficult.
JA: この本は難しすぎて最後まで読めません。
EN: This book is too difficult to read to the end.

この本は難しすぎて君には読めない

This book is too difficult for you to read.

この本は難しすぎて僕には読めません

This book is too difficult for me to read.

この本は難しすぎて理解できない

This book is too difficult to understand.

この本は難しすぎて僕には読めない

This book is too difficult for me to read.

この本は難しすぎてがわからない

This book is so difficult that I can’t make head or tail of it.