Some people have a lot of thoughts they’d like to record, and that’s where the Jibun Techo Idea booklets come to save the day! These are made to fit inside your Jibun Techo cover. 2 A5 Slim grid ruled Idea notebooks per packet. The Jibun Techo uses a special proprietary ‘thin paper’, which is formulated to help prevent bleed-through and to pair well with tougher erasable pens (paper is not as likely to wrinkle when erasing).