You'll not get a logbook without registering.........did you mean course book?
If you are unemployed, you may be able to get free/or minimum charge course fees at your local adult education centre........or indead if you are in reciept of some benefits......call them up and ask.
The big problem for you at this time is that they, like colleges, are generally closed untill September......but not always.....again, contact them
Also there are loads of places offering free courses throughout the year at various centres and again here your local Adult Ed Dept should be able to help you even if it's to direct you to a help centre who advise on education/training/qualifications etc and work closely with various other bodies.....you should also be able to find info at your local library....and most places have very good websites too.
Although I teach/Invidulate ECDL I do not have any workbooks as these belong to the learners, and logbooks are unique.
You could always take a look at www,learndirect.co.uk too, they offer both course and advice.
Hope something there is usefull.
Smoggy