Denise Lammi and David Wojtowicz are sister and brother. Denise and David both became Chartered Accountants but their education and professional careers took them in different directions until 1989, when David moved to Vancouver from Amsterdam. Denise was already residing in Vancouver. Since that time; together, they founded and operated a successful Chartered Accounting practice for 15 years and authored numerous courses for the professional development of accountants. More recent accomplishments, from their combined efforts, include authoring and publishing the personal development book "Your Own Devices". Using their training and experience in insightful and precise thinking; they wrote a thorough, organized, efficient and practical book on the subject of personal development. To learn more about the book or to order the book; please visit the website