Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Reader From England

I recently purchased this book for my Meng Project, involvingcontrolling a vision head focus,zoom through a pic serial port connected to a pc with vision modelling.I am surprised, that the code is written in a fashion which istotally unbearable, hard to understand and just reflects the authors perception and imagination rather than discussing theimportant communication building blocks and instructions.Its totally ambigious to distinguish the original c++ routines and the invented commands written in form of classes.I think if i read through all that material in header files i will lag so behind completing my original project.....The paper quality is poor and not very pleasant to read.