Between year 1992 and 2012 Linda Vera Roethlisberger published her Basic Workbooks
First of all there is the workbook »Der sinnliche draht zur geistigen Welt«.
Right now it is available in: German Language and Russisch on the bookmarket.
An ENGLISH Version will probably available by the end of 2022.
In the following years she created her basic Workbook »IN TOUCH WITH YOUR INNER VOICE« in three Levels as self-learning Workbooks, including Audio-Exercises.
The book Level 1 has been developed also as an online-Version on the online self-learning platform: www.udemy.com
and can be found in German and also in English Language: »IN TOUCH WITH YOUR INNER VOICE / Level 1 Courses 1 to 6«
More information about these books in 3 levels you can find on our German Homepage: www.trilogos.ch