Holman joins Orient on a deal until the end of the season from Cheltenham Town and is eligible to make his debut this weekend at home to Boreham Wood.
Having started his career playing for United Counties League Premier Division side Coganhoe United, the 27-year old earned a move to Histon FC where he netted 22 goals in 48 appearances. His form for the Conference North side saw him move to Braintree Town where his scoring spree continued as the forward totalled 24 goals in 55 games.
Following a successful season at Cressing Road, Holman moved to Colchester United where he made four appearances before enjoying loan spells at Wrexham, Aldershot and Dover.
After a season at The Whites, Holman joined Woking on loan where his goal tally reached 14.
The striker appeared 26 times during his six-month spell at Woking, which earned him another loan move to the National League, this time with Cheltenham Town where Holman scored 16 goals in 18 starts for The Robins.
Holman was named as joint winner of the National League’s Golden Boot award as Cheltenham were promoted to League Two.
The former Braintree man then made the permanent move to Whaddon Road on a free transfer on the 5th January 2016.
After registering 26 league appearances and two goals for The Robins, Holman signed for Boreham Wood on a 93-day loan in September 2017 where he made 10 appearances, scoring 4 goals.