"Kuvalemia itia-suomalaisten vanhoista tavoista 5: Summer lessons" is the fifth book in the series, written by the famous Finnish writer Johannes Hyäya. In this book, he reveals to the reader the unique traditions and customs of the Eastern Finns related to the summer period. The author describes various aspects of the life of East Finns in the summer months, showing their connection with nature, traditions and interaction between people. This book will be an interesting source of knowledge for those who are interested in the eastern culture of Finland and want to better understand the life and lifestyle of this unique people.