Annie Lorrain Smith's book 'Lichens' is a scholarly exploration of the fascinating symbiotic relationship between fungi and algae that form these unique organisms. Smith delves into the scientific aspects of lichens, discussing their ecological importance and diverse forms. Her writing style is both academic and accessible, making this book a valuable resource for both experts in the field and lay readers interested in learning more about these overlooked organisms. The book is a comprehensive overview of the subject, offering detailed descriptions and illustrations to aid in the reader's understanding. Smith's work is considered a classic in the study of lichens, and continues to be referenced in modern research and literature. Annie Lorrain Smith, a renowned botanist and mycologist, brought her expertise to 'Lichens' after years of studying these remarkable organisms. Her passion for the subject is evident in the thoroughness of her research and the clarity of her writing. Smith's background in botany and mycology allowed her to provide groundbreaking insights into the world of lichens, making her a respected authority on the topic. I highly recommend 'Lichens' to anyone interested in the natural world and the intricate relationships found within it. Smith's meticulous study of lichens offers a deep dive into these fascinating organisms, providing a wealth of information and a rewarding reading experience for all curious minds.