The Biology Laboratory Manual by Guttman, Vodopich, Johnson, Raven, and Moore provides an easy to follow approach to introductory biology. It features many activities that can be completed on average between 2 and 3 hours. There are many photos and diagrams that are in full color, many pre-laboratory type questions, and a good amount of questions that are best answered during lab or after lab. This book is ideal for an advanced high school biology course or a freshman or sophomore college biology class. Unlike a fair amount of the laboratory texts out there, this one accompanies most biology books very well. Thus, the laboratory portion of class tends to blend very well with the lecture portion.