Can you think of a top business book exclusively for professional services firms? If so, your list is probably short and presumably headed by any title from David Maister. In this episode, a new book for this industry is introduced, The Boutique: How to Start, Scale, and Sell a Professional Services Firm by Greg Alexander.In this conversation, we talk about elephant and rabbit hunters, the one-thirds of billings, the only three types of firms in existence, and two critical metrics that buyers of professional services firms are examining closely.