This book is definitely very advanced and is very clearly written. The approach will:- state (and explain) business problems- explain the rational in choosing the computer tool (despite the title, the book is not entirely focused on Excel).- walk you step by step through the modeling processThe CD contains some valuable tools for advances topics (monte carlo and discrete event simulation). Frontline Systems were alo kind enough to send free of charge an updated version of the premium solver for education (the version on CD is not compatible with Excel 2003).I consider the book a great value and recommend it to anyone who is willing to invest the time to learn from it.