Practical guidebooks on the Electronic Bookkeeping Preservation Law and consumption tax. ① Title: Electronic Bookkeeping Preservation Law Handbook - Content: Explains the impact of the 2021 revision and how to utilize the system in a Q&A format. 2021 ② Title: Invoice & Consumption Tax Super Beginner's Guide - Content: Explains consumption tax related to invoices in 60 minutes. 2022 Thank you for viewing.