Truly excellent book - very informative and well-written. Contains some witty frases which reflect Dr. Coxs character :-) great companion for the TV series as it breaks everything down. If your not serious about learning though then dont buy it as it does get very technical at times (like the TV series). The book motivates you to look beyond our every-day rhythmical lives and realise how beautiful planet earth really is and how much we all have a common. Well done Dr. Cox and crew!