In most web browsers, you can zoom in and out by holding down the Ctrl key (the Cmd key in OS X) and pressing either the "+" or "-" key at the same time.
Another option is to use the mouse: hold down the Ctrl key and move the mouse scroll wheel. To return to normal size, press the Ctrl and 0 keys at the same time.
The button Order Digital Copy enables to order a digital copy of a book without having to visit the library. The conditions and cost of the service vary by libraries.
The digital copy service is offered by the National Library of Estonia, Academic Library of Tallinn University and University of Tartu Library.
The service eBook on Demand is offered in many European Union libraries. In Estonia its member libraries are the University of Tartu Library and the National Library of Estonia. Via the National Library of Estonia, it is possible to order digital copies of items from the Tallinn Central Library and the Estonian Academy of Music and Theatre Library. More information here.